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RX 6700M领衔微星幻影15轻薄游戏本作者：***来源：《微型计算机》2021年第21期游戏本如何才能给玩家提供出色的游戏体验？强悍的性能，高效的散热，出色的显示效果缺一不可，但在AMD看来这些都还不够。

他们认为，一款优秀的游戏本应该能在1080p分辨率下以超过100fps的速度运行游戏，显示屏能够实现144Hz的流畅显示，同时还要有NVMe SSD以带来疾速的响应时间以及超过10小时的续航时间。

有鉴于此，AMD在不久前推出了名为“超威卓越平台”的游戏本设计框架。

目前，已经有不少基于这一设计框架的游戏本上市，我们最新体验的微星幻影15就是其中之一。

轻薄机身+240Hz“快屏”微星幻影15的機身由全铝合金材质打造，炭灰色金属喷砂工艺赋予这款游戏本不错的质感，A面右上角的Logo让这款游戏本拥有较高的辨识度。

拥有轻薄的机身是微星幻影15的一大亮点，其尺寸为357mm×247mm×19mm（长×宽×厚），并且重量仅1.9kg，对比多款同级游戏本，微星幻影15的厚度和重量都名列前茅。

微星幻影15搭载分辨率为1920×1080的15.6英寸显示屏，三面4.9mm的窄边框设计让它拥有82%的高屏占比，可为玩家提供不错的游戏观感。

搭载240 Hz高刷新率显示屏是这款游戏本的另一大亮点。

相比传统的60Hz显示屏或时下主流的144Hz显示屏，微星幻影15的240 Hz高刷新率显示屏可提供更加流畅的游戏画面。

微星幻影15的显示屏还拥有不错的色域覆盖面积，Datacolor Spyder5 Pro实测结果显示其sRGB 色域覆盖面积为97%，AdobeRGB色域覆盖面积为75%，DCI-P3色域覆盖面积为75%。

可见其屏幕色彩表现出色，能够尽可能还原真实色彩。

微星幻影15配备下沉式键盘，其按键压力克数适中，可提供不错的游戏体验，而且较大的按键面积和较宽的按键间距，也能在激烈对抗中快速响应玩家的各种操作。

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保留修改权利2021年6月警告销售条件本样本中产品和/或系统或相关产品出现故障，选型不当或使用不当，均可能导致人身伤亡和财产损失。

本文档以及由派克·汉尼汾公司及其子公司和授权经销商提供的其他资料，为具有技术知识的用户提供进一步研究所需的产品和/或系统选项。

重要的是，用户必须对您的应用进行全面的分析，并对当前产品样本中与产品或系统相关的资料进行评估。

由于工作条件以及产品或系统的多样性，用户必须自行分析和测试，并独自承担一切后果，包括:产品和系统的最终选型以及确保满足应用的所有性能、安全和警告等方面的要求。

派克·汉尼汾及其子公司可能会随时对本样本中的产品，包括但不限于:产品的特性、产品的规格、产品的结构、产品的有效性以及产品的价格作出变更而不另行通知.本样本中的所有产品均由派克·汉尼汾公司及其子公司和援权经销商销售。

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本公司的密封件，只能在本公司的文件资料述及的应用参数范围与接触介质、压力、温度和存放时间相一致的情况下才能使用。

在规定的应用参数范围外使用以及错误选用不同的材料都可能导致密封件寿命的缩短以及设备的损坏，甚至更严重的后果(如生命安全，环境污染等)。

样本中所列出的工作压力、温度范围、运动速度是极限值，它们之间相互关联、相互影响；在极端的工况下，建议不要同时把各个参数都同时用到极限值。

对于特殊的要求（压力、温度、速度、介质等），请联系派克汉尼汾公司以咨询合适的密封结构、材料、配置、安装建议等。

由于诸多工作参数会影响到流体传动系统及密封元件，这些设备的制造商必须在实际工作条件下测试、验证并批准密封系统的功能与可靠性。

此外，对于不断出现的新的介质（液压油、润滑脂、清洗剂等)，用户特别注意它们与目前所用的密封件弹性体材料的兼容性。

我们建议用户在大批量应用之前，在厂内或现场先做密封材料的兼容性能测试，作为密封产品与系统供应商，我们建议用户遵循我们的这些建议。

几款著名c‎d机的比较‎几款cd机‎的比较，所用器材是‎P S AUDIO‎前后级，MARK NO。

38前、NO.27。

5后级，MARAN‎T Z PM15合‎并级，卓丽1号细‎喇叭。

从评价和打‎分来看可分‎三个档次，最佳表现的‎第一集团是‎L HH80‎0，金噪子DP‎65，Denon‎ DCD S1，处在中间难‎分伯仲的是‎P roce‎e d PDT3/PDP3，Maran‎t z CD15，Calif‎o rnia‎Audio‎Labs Alpha‎，CEC TL3，AVI S 2000 MC 评价较差得‎分最低的是‎T EAC VRDS 20，Reste‎k Radia‎n t，Music‎a l Fidel‎i ty F CD，以下售价是‎港元。

“Maran‎t z CD15（17000‎￥）江湖传闻是‎与LHH8‎00同一件‎东西外壳不‎同而已，开声之后的‎确有LHH‎800的影‎子，但在每一项‎分数也比飞‎利浦低少许‎，声音是一贯‎的马兰士特‎色，适量的丰润‎，富音乐感，令人听的舒‎服。

TEAC VRDS 20（13800‎￥）音像明确稳‎定，音色较冷彻‎清淡，分析力稍弱‎，低频潜力不‎足，乐器质感重‎现有沙石，但是一部有‎音乐味的产‎品，经得起长时‎间聆听不感‎疲倦。

CEC TL3（21500‎￥）音色柔和舒‎服，不是很硬，模拟声很浓‎，动态表现像‎是内家功夫‎，柔韧个性特‎别适宜播放‎弦乐，人声很暖，分析力稍逊‎，音场营造稍‎窄，有一份从容‎不迫的感觉‎。

AVI S 2000 MC（12800‎Y）英式音乐味‎，低音较丰厚‎，没有浓烈的‎音染个性，音质颇为清‎新自然，质感丰满有‎力，弦乐出的很‎娇，但觉稍薄，音场不会前‎倾，大动态下表‎现比较斯文‎，整体表现平‎均没有突出‎的优点。

Reste‎k Radia‎n t(17000‎￥)控制力表现‎理想，音乐感不如‎M aran‎t z CD15浓‎郁，但很端正，没有加进味‎精的感觉，音场稍窄，质感显的清‎淡，弦乐丝般幼‎滑，人声稍为偏‎冷个性偏于‎冷静，每张CD片‎好象也有这‎部机的影子‎，清秀高贵，总与人有点‎距离，在音乐来说‎是犯了大忌‎。

SONY Discman歷代機王大對決~ 相信隨身聽是許多人進入音響世界的起點~合理的音質及多數人可以負擔的價格加上使用極為便利~ 造成Walkman風迷全球~雖然有許多的廠商進行Walkman的研發及製造~但身為隨身聽的發明人”SONY”~至今仍然是Walkman的領導廠商~擁有最多知名機種~當然~這些機種皆成為小弟收藏的對像~廢話不說了~這次評比的機種只限SONY~且為小弟現有機種~順序以綜合音質排名~如果各位前輩你有其他覺得不錯的機種還請告知~1.D-Z555推出. 64000日幣SONY Discman 5週年紀念機~SONY第3號座機級隨身聽~公認音質是CD隨身聽中的第一把交椅~機構使用150系列承盤長軸加強型~音源使用德儀Burr Brown 製PCM66P D/Ax2.並搭配訊源可調DSP系統~使他擁有高級座機的音質水準~音質通透.層次分明.音像比例非常恰當.每一個聲音細節都可交代的很清楚.不拖泥帶水~最難得的是.不論各種頻段的音色都能處理的十分圓潤細膩.高頻或低頻的延伸相當自然漂亮.聽起來很舒服又不刺耳~難以想像隨身聽有這種音色~聽弦樂及小編制室內樂是隨身聽極品~缺點:笨重的體積加上不便的外出電源.實在難以和隨身聽畫上等號~2.D-303推出.37800日幣SONY DAT錄音座專用訊源.Discman in door最高級機種~正式轉用1Bit D/A之音質加強型機種.SONY Discman 音質最顛峰作品~機構延用350承盤+SF89讀取機構~音源使用Delta 1BitL/R獨立雙D/A+LSI系統的強化音質電路+角型光纖輸出~.使它擁有所有CD隨身聽中最大的噪信比.最大動態.最小響頻誤差.音質十分通透華麗.音場寬擴自然.細節豐富.解析超強~由xx以上的優勢..從單純的獨奏到大編制交響樂的重撥.都能讓人感受到其他機種所沒有的音樂張力及情緒!!就是那種說不出的音樂氣氛.使得聽各種音樂都十分適合~大編制交響樂是它拿的手好戲.由其是在鼓號xx時.每件樂器歷歷在目..銅管樂聲猶如日出金光.直上雲霄.那種無與xx的華麗與xx...高價音響也不過如此~缺點:高頻延至部份不夠圓潤細膩.是它敗給555的原因.捨棄150系列.改用350承盤.故障率實在令人不敢恭維.1992年5月10推出後繼機種D-515後.走入歷史...3.D-J50推出. 54800日幣SONY 50譜系特別版Discman~SONY數量最少的Discman~末代16bit D/A CD隨身聽~機構使用J系列超薄型結構”JACKET”.音源使用德儀Burr Brown 製PCM66P D/Ax2+LSI系統的強化音質電路.使他同時擁有16bit及1bit的優點~聲音非常中性均衡.沒有多餘的喧染.透明感極佳.~超薄”JACKET”結構.全金屬機身.秀氣細膩的造型.SONY所有隨身聽中作工品質最精細的一台Discman~因使用D-Z555的D/Ax2加1bit的LSI系統.音質圓潤細膩.層次分明.音場開擴.聲音密度.速度.比例皆非常優秀.由於中性又均衡的特性.絕佳的空氣感.再加上圓潤細膩的音質.清麗飄逸音色..來杯咖啡.最適合夜晚細細的品味~被業界喻為SONY Discman最高傑作之機種.缺點:因過xx密集機構及電路.發生極易故障.及易被干擾的現象.導致他提前停產的命運~4.D-350推出.43800日幣SONY第4號也是末代座機級隨身聽(Protable system in door)~第一台配備線控耳機的Discman~機構使用新350承盤及全座機功能介面.音源使用座機同級SONY 16Bit Daul 8time D/A.使它擁有座機般穩定且理性的音色~聲音密度/層次感/結像度/比例/平衡表現極為優秀.完全沒有現行CD隨身聽的混濁.串音的問題~實際聽感與303很接近.聲音較暖一點.音場近一點.適合中小編制管弦樂~寧靜沉穩的底聲.聽鋼琴曲乾淨俐落.毫不拖泥帶水~由於搭載CD隨身聽中最優秀的DBB系統.使它也適合各種流行樂及搖滾樂.~缺點:早期CD那種過於理性的音色.還有點不習慣...捨棄150系列.改用使用350承盤.故障率實在令人不敢恭維.5.D-335推出. 30800日幣SONY末代超高音質Discman~真正專為MD設計的高音質訊源~機構使用DAX11承盤長軸加強型及6秒進化版ESP.音源使用1Bit L/R獨立雙D/A轉換器及精簡類比電路.全波段20~20KHz唯一+0誤差的Discman~音質忠實自然.音色猶如座機般精準.定位感/結像度/聲音密度/比例/細節/平衡皆十分優秀~搭配20mW驅動力.各頻段表現中規中舉.彷彿有點LP的味道.非常耐聽..適合小爵士xx.流行xx.室內xx...高頻細節部份如行雲流水.圓潤細膩不刺耳.聽Akiko小姐的小提琴還真是美妙...缺點:音場略小.低頻延伸有點不夠漂亮.加上不夠精美的xx麵包的造型...外型難以跟高級機種畫上等號~6.D-250推出.40500日幣機王D-Z555直系血統機種.煎餅機2號~機構使用同系列承盤一般型.音源使用德儀Burr Brown 製PCM66P D/Ax1..音色亮麗溫暖~聲音密度/層次感/定位感/結像度/比例表現極優秀. 加上小巧精美的造型及金屬質感.令人愛不釋手.~良好的音樂氣氛.聲音十分甜美..尤其是人聲嗓音的那種磁性.大提琴那種擦弦箱板聲.. 一般座機都難有這種水準!最適合聽人聲及弦樂.缺點:速度偏慢.有點刻意強化的高低頻及殘響.加上不便的外出電源及功能.真是”缺陷美”的機種~7.D-E9001998年推出. 32300日幣十週年記念機D-777修正版~漂亮的烤漆.輕薄短小的體積.便利的操作是最大特色~ 機構延用D-777 DAX01承盤及進化版ESP2.音源使用1 Bit D/A轉換器及修正類比電路~層次感/比例/空間感/平衡相當優秀.是近代Walkman中音質最好的機種~音色清麗脫俗.各頻段忠實.沒有刻意的強化.聲音有點類似335~均衡性很高的機種.適合流行xx.室內xx.輕音xx~聽bossanova.那種放鬆的感覺真..令人不想放下耳機~個人認為隨身聽綜合評價最優秀的機種~缺點:動態偏弱.定位有點不自在.冷~~少了點氣氛.跟老機相比.有種放不開的感覺.真是不上不下的機種~~8.D-777推出. 32800日幣Discman十週年記念機.近十年來CD隨身聽的代表作!!但也是SONY Discman音質走下坡的分界點..漂亮的烤漆.輕薄短小的體積.超強的重低音是最大特色~機構使用DAX01承盤及強化ESP.音源使用1Bit L/R獨立雙D/A轉換器及超級EX DBB電路.. 聲音密度/層次感/解析力/動態/細節/空間感表現一流~音色溫暖.細節豐富.強列的個性色彩.音樂xx十足.適合大編制交響樂~無與論比的動感及氣氛..聽搖滾樂.舞曲.流行樂真的非常暢快淋漓~缺點電路設計易被干擾.導致底聲不夠乾淨.定位略有浮動.加上個性色彩過xx強烈音質最終評比敗給姐妹機E900的原因.~~9.D-150推出49,800日幣超薄機D-100進化版.煎餅機1號.機王D-Z555直系血統機種~第一台配備機內充電池!機構使用150承盤及KSS 167B雷射頭.音源使用德儀Burr Brown 製16 Bit D/A轉換器~擁有冷靜的音色及優秀的空氣感.類似早期座機般的味道~~音場/透明感/聲音密度/結像度/空間感/動態表現一流.加上小巧精美的造型及金屬質感.令人愛不釋手.~優秀的音場及透明度.晶瑩剔透.聲音乾淨.聽自然音樂.新音樂非常速配.大編制交響樂也相當適合~~缺點:早期CD偏硬的音色.不便的外出電源及功能.加上過高的價格.不到一年時間就被後繼機種D-250淘汰出局~~10.D-E01推出38000日幣SONY Discman 15週年記念機種~隨身聽科技的結晶.最具現代感及未來感的機種.世界第一台吸入式SLIDE IN及G-PROTECTION機構~音源使用SIG 1 Bit D/A轉換器及.超省電STAMINA電路. 透明感/層次感/結像度/解析力表現相當不錯音質清爽不黏膩.聲音乾淨.漂亮.優秀的透明感.聽各種音樂如行雲流水般順暢.適合輕音樂.流行樂~~飄逸透明的音色.聽聽xx樂還不錯~缺點.過xx陰柔的音色筆.缺乏xx及氣氛.只重視功能.吝嗇xx音質電路.只有收藏價質的機王~~11.D-50 MK2推出49800日幣SONY第2台CD隨身聽~第2號座機級隨身聽~世界第1台名叫Discman.的CD隨身聽~機構/不詳??音源使用16 Bit單晶片D/A轉換器..改進1號機頻寬/解析/透明度..等等缺點...擁有極冷靜的音色.極寬廣的音場~透明感/聲音密度/結像度/空間感表現一流.搭載30mW的耳機驅動力.聽大編制交響樂.那種場面及氣勢.xx555.303都不是對手~~缺點:冷~冷~硬的音色.細節豐富但粗顆粒偏粗~加上超重的機身..機內無法裝電池..根本不算是隨身聽~12.D-5WD推出SONY運動型強化防震/防水Widdi全天候CD隨身聽~SONY末代日本本土製造機種(記念機除外)末代正規15mW機~機構使用DAX11承盤及Widdi機構~音源使用1 Bit D/A轉換器及強化ESP2電路~音質偏暖.推力強.動感十足~適合聽流行樂~重裝籃球鞋的造型.CARBON飾板.銀色烤漆大型CD倉門扣~ 個人認為外觀最漂亮的CD隨身聽~缺點:細節/解析模糊/體積偏大~只能用看的隨身聽13.D-E707推出.SONY近代CD中堅機種.xxxx製~機構使用DAX11~音源使用1 Bit D/A轉換器~聲音偏暖~功能齊全~號稱15mW.體積.造型.價格.音質等比例不錯~C/P質最高.同門師兄弟最多.維修材料便宜..xx首選機種..適合一般流行樂~缺點:細節/解析模糊/音場小…..現在給家人拿來聽佛經~14.D-365推出SONY CD中堅機種.xxxx製~機構使用DAX11..音源使用1 Bit D/A轉換器~聲音尚可.功能齊全!!C/P值不錯.雙生機種很多.維修材料便宜~ 不錯的入門機~聽一般流行樂還可以...缺點:其實這種機器不必考慮缺點RUN耳機的首選~15.D-405推出SONY CD低階機種.xxxx製~機構使用DAX11~音源使用1 Bit D/A轉換器~聲音……….功能該有都有~C/P…...平易近人的入門機~聽.....CD……..就好~缺點:不知該怎麼說研究SONY CD隨身聽結構及電路的最佳機種目前xx頭已被拆了………呼~xx寫完了~以上是我目前手上擁有的機種~基xx客觀的理由~我沒有的我就不寫~還有很多好機器~但限xx個人財力…..評論的部份.只是我各人的看法.我已盡力做到客觀. 我相信別人會有不同的看法.提出我都會接受~其實寫到xx面.我已快沒力~還是很遺憾有很多機種沒寫到.包括D-88.D-515.等及現行SONY主力機種~沒寫到的部份.就交給其他前輩了~。

毫无疑问，在流媒体视频的高速普及下，在智能手机的飞速发展下，我们观看高质量的视频内容真实的4K时代UHD Bur-ray Disc碟机选购03ＵＢＰ－Ｘ７００是索尼旗下第一部能同时支持ＨＤＲ１０和Ｄｏｌｂｙ　Ｖｉｓｉｏｎ的４Ｋ蓝光机播放机。

ＨＤＲ１０信号的亮度比起ＳＤＲ信号要高出１００倍，能大幅增加最高亮度，也能维持深沉且细节度高的黑色，带给用户全新的观赏体验。

Ｄｏｌｂｙ　Ｖｉｓｉｏｎ则以耀眼的亮部、更深沉的暗部和绚丽色彩，让场景更逼真。

同为ＨＤＲ解决方案的Ｄｏｌｂｙ　Ｖｉｓｉｏｎ可以为用户在家中创造出身历其境且迷人的剧院体验。

不过，需要注意的是Ｄｏｌｂｙ　Ｖｉｓｉｏｎ的对应功能则需要通过固件升级后才可以正式使用，用户在拿到ＵＢＰ－Ｘ７００时需要检查碟机是否安装了最新的固件。

ＵＢＰ－Ｘ７００支持全新的ＢＴ．２０２０色域，相比传统电视的讯号，能够提供范围更广的色彩。

同时，碟机还具备两路ＨＤＭＩ信号输出，可以分离视频信号和音频信号，并具有传统的同轴数字输出。

ＵＢＰ－Ｘ７００支持多种音乐格式，从ＡＡＣ和ＰＣＭ格式到１１．２ＭＨｚ　ＤＳＤ，皆在支持范围。

Ｓｏｎｙ　ＵＢＰ－Ｘ７００04去年推出的ＵＢＰ－Ｘ８００是索尼首台支持４Ｋ　Ｕｌｔｒａ　ＨＤ　Ｂｌｕ－ｒａｙ的播放机，它对应ＵＨＤ　ＢＤ　４Ｋ并支持ＨＤＲ功能。

在光驱的部分，采用了索尼自家所开发的Ｐｒｅｃｉｓｉｏｎ　ＨＤ驱动器，除了能播放ＵＨＤ　ＢＤ／ＢＤ及ＤＶＤ外，也能播放ＳＡＣＤ及ＤＶＤ－Ａｕｄｉｏ等音乐格式光盘。

　接口部分，ＵＢＰ－Ｘ８００拥有两个ＨＤＭＩ输出端口，全部支援ＨＤＣＰ２．２规格，方便用户实现音画分离输出，确保画质和音质不会互相干扰。

除ＨＤＭＩ之外，也具备有同轴数码输出，另外还具有ＵＳＢ接口，可直接读取在存储器上的档案。

网络功能上，ＵＢＰ－Ｘ８００Ｗｉ－Ｆｉ也有有线Ｅｔｈｅｒｎｅｔ网络端口，支援ＹｏｕＴｕｂｅ、Ｎｅｔｆｌｉｘ及Ａｍａｚｏｎ　Ｖｉｄｅｏ等视频串流ＡＰＰ上的４Ｋ　ＨＤＲ信号。

MP2105DJ-LF-PMP21051MHz, 800mA Synchronous Step-Down ConverterThe Future of Analog IC Technology DESCRIPTIONThe MP2105 is a 1MHz constant frequency,current mode, PWM step-down converter. The device integrates a main switch and a synchronous rectifier for high efficiency without an external Schottky diode. It is ideal for powering portable equipment that runs from a single cell Lithium-Ion (Li+) battery. The MP2105 can supply 800mA of load current from a 2.5V to 6V input voltage. The output voltage can be regulated as low as 0.6V. The MP2105 can also run at 100% duty cycle for low dropout applications.The MP2105 is available in a low profile (1mm) 5-pin, TSOT and 10-pin, MSOP packages.FEATURES• High Efficiency: Up to 95%• 1MHz Constant Switching Frequency • 800mA Available Load Current • 2.5V to 6V Input Voltage Range • Output Voltage as Low as 0.6V • 100% Duty Cycle in Dropout • Current Mode Control • Short Circuit Protection • Thermal Fault Protection • <0.1μA Shutdown Current• Space Saving 5-Pin TSOT23 and 10-pinMSOP PackagesAPPLICATIONS• Cellular and Smart Phones• Microprocessors and DSP Core Supplies • PDAs • MP3 Players• Digital Still and Video Cameras • Portable InstrumentsAll MPS parts are lead-free and adhere to the RoHS directive. For MPS green status, please visit MPS website under Products, Quality Assurance page.“MPS” and “The Future of Analog IC Technology” are registered trademarks of Monolithic Power Systems, Inc.TYPICAL APPLICATIONE F F I C I E N C Y (%)101001000LOAD CURRENT (mA)MP2105-EC01Efficiency vs Load CurrentMP2105 – 1MHz 800mA SYNCHRONOUS STEP-DOWN CONVERTERORDERING INFORMATIONPart Number Package Top Marking Free Air Temperature (T A) MP2105DJ*TSOT23-5 C5 –40°C to +85°CMP2105DK**MSOP10 2105D –40°C to +85°C* For Tape & Reel, add suffix –Z (g. MP2105DJ–Z).For RoHS compliant packaging, add suffix –LF (e.g. MP2105DJ–LF–Z)** For Tape & Reel, add suffix –Z (g. MP2105DK–Z).For RoHS compliant packaging, add suffix –LF (e.g. MP2105DK–LF–Z)PACKAGE REFERENCEABSOLUTE MAXIMUM RATINGS (1) V IN to GND..................................–0.3V to +6.5V V SW to GND...........................–0.3V to V IN +0.3V V FB, V EN to GND..........................–0.3V to +6.5V Continuous Power Dissipation (T A = +25°C) (2) TSOT23-5………………………………....0.56W MSOP10…………………………………....0.83W Junction Temperature.............................+150°C Lead Temperature..................................+260°C Storage Temperature .............–65°C to +150°C Recommended Operating Conditions (3) Supply Voltage V IN.............................2.5V to 6V Output Voltage V OUT...........................0.6V to 6V Operating Junct. Temp............-40°C to +125°C Thermal Resistance (4)θJA θJCTSOT23-5..............................220....110..°C/W MSOP10................................150.....65...°C/W Notes:1) Exceeding these ratings may damage the device.2) The maximum allowable power dissipation is a function of themaximum junction temperature T J (MAX), the junction-to-ambient thermal resistance θJA, and the ambient temperature T A. The maximum allowable continuous power dissipation at any ambient temperature is calculated by P D (MAX) = (T J (MAX)-T A)/θJA. Exceeding the maximum allowable power dissipation will cause excessive die temperature, and the regulator will go into thermal shutdown. Internal thermal shutdown circuitry protects the device from permanent damage.3) The device is not guaranteed to function outside of itsoperating conditions.4) Measured on JESD51-7, 4-layer PCB.MP2105 – 1MHz 800mA SYNCHRONOUS STEP-DOWN CONVERTER ELECTRICAL CHARACTERISTICS (5)V IN = V EN = 3.6V, T A = +25°C, unless otherwise noted.Parameter SymbolCondition MinTypMaxUnitsSupply Current V EN = V IN, V FB = 0.65V 440 600 μA Shutdown Current V EN = 0V, V IN = 6V 0.10 1 μAIN Undervoltage Lockout Threshold RisingEdge 2.15 2.30 2.40 VIN Undervoltage LockoutHysteresis55 mVT A = +25°C 0.588 0.600 0.612Regulated FB Voltage V FB–40°C ≤ T A≤ +85°C 0.582 0.600 0.618VFB Input Bias Current V FB = 0.65V –50 0.5 +50 nA PFET On Resistance I SW=100mA 0.42 ΩNFET On Resistance I SW=–100mA 0.26 ΩSW Leakage Current V EN = 0V, V IN = 6V,V SW = 0V or 6V–1 +1 μAPFET Current Limit Duty Cycle = 100%,Current Pulse Width < 1ms1.2 1.6 AOscillator Frequency f OSC0.85 1.05 1.3 MHz Thermal Shutdown TripThreshold145 °CEN Trip Threshold –40°C ≤ T A≤+85°C 0.3 0.96 1.5 V EN Input Current V EN = 0V to 6V –1 +1 μA Notes:5) 100% production test at +25°C. Specifications over the temperature range are guaranteed by design and characterization.MP2105 – 1MHz 800mA SYNCHRONOUS STEP-DOWN CONVERTERPIN FUNCTIONSMSOP Pin # TSOT Pin #Name Description8 1 ENRegulator Enable Control Input. Drive EN above 1.5V to turn on the MP2105.Drive EN below 0.3V to turn it off (shutdown current < 0.1μA).3 2 GND Ground.9 3 SWPower Switch Output. Inductor connection to drains of the internal PFET andNFET switches.1 4 IN Supply Input. Bypass to GND with a 2.2μF or greater ceramic capacitor.5 5 FBFeedback Input. Connect FB to the center point of the external resistor divider.The feedback threshold voltage is 0.6V.2, 4, 6, 7 NC No Connect 10 PGND Power GroundMP2105 – 1MHz 800mA SYNCHRONOUS STEP-DOWN CONVERTERTYPCIAL PERFORMANCE CHARACTERISTICSV IN = 3.3V, V OUT = 1.8V, L1 = 4.7μH, C1 = 4.7μF, C3 = 10μF, T A = +25°C, unless otherwise noted.MP2105-TPC03Load Transient(I OUT =0mA to 500mA step)Light Load Operation(I OUT =0mA)F E ED B A C K V O L T AG E (V )-40+200+40+60+80+100-40+200-20+40+60+80+100TEMPERATURE (°C)MP2105-TPC01Feedback Voltage vs TemperatureE F F I C I E N C Y (%)101001000LOAD CURRENT (mA)MP2105-EC01E F F I C I E N C Y (%)LOAD CURRENT (mA)MP2105-TPC041.101.081.061.041.021.000.980.960.94S W I T C H I N G F R E Q U E N C Y (M H z )TEMPERATURE (°C)MP2105-TPC02Switching Frequency vs TemperatureMP2105-EC02V OUT 100mV/div.I OUT 0.5A/div.V OUT 10mV/div.I L0.2A/div.SW 2V/div.MP2105 – 1MHz 800mA SYNCHRONOUS STEP-DOWN CONVERTERTYPCIAL PERFORMANCE CHARACTERISTICS (continued)V IN = 3.3V, V OUT = 1.8V, L1 = 4.7μH, C1 = 4.7μF, C3 = 10μF, T A = +25°C, unless otherwise noted.MP2105-TPC09Short Circuit Protection(No Load)MP2105-TPC07Heavy Load OperationI OUT= 800mAMP2105-TPC10Short Circuit Recovery (No Load)MP2105-TPC08Startup from ShutdownV OUT 10mV/div.I L0.2A/div.L =0SW 2V/div.V OUT 1V/div.I L0.5A/div.V OUT 1V/div.I L0.5A/div.V EN 2V/div.V OUT 1V/div.I L0.5A/div.MP2105 – 1MHz 800mA SYNCHRONOUS STEP-DOWN CONVERTEROPERATIONThe MP2105 is a constant frequency current mode PWM step-down converter. The MP2105 is optimized for low voltage, Li-Ion battery powered applications where high efficiency and small size are critical. The MP2105 uses an external resistor divider to set the output voltage from 0.6V to 6V. The device integrates both a main switch and a synchronous rectifier, which provides high efficiency and eliminatesan external Schottky diode. The MP2105 can achieve 100% duty cycle. The duty cycle D of a step-down converter is defined as:%100V V %100f T D INOUTOSC ON ×≈××= where T ON is the main switch on time, and f OSC is the oscillator frequency (1MHz).INENFBGNDSWMP2105_BD01Figure 1—Function Block DiagramMP2105 – 1MHz 800mA SYNCHRONOUS STEP-DOWN CONVERTERCurrent Mode PWM ControlSlope compensated current mode PWM control provides stable switching and cycle-by-cycle current limit for superior load and line response and protection of the internal main switch and synchronous rectifier. The MP2105 switches at a constant frequency (1MHz) and regulates the output voltage. During each cycle the PWM comparator modulates the power transferred to the load by changing the inductor peak current based on the feedback error voltage. During normal operation, the main switch is turned on for a certain time to ramp the inductor current at each rising edge of the internal oscillator, and switched off when the peak inductor current is above the error voltage. When the main switch is off, the synchronous rectifier will be turned on immediately and stay on until either the next cycle starts. Dropout OperationThe MP2105 allows the main switch to remain on for more than one switching cycle and increases the duty cycle while the input voltage is dropping close to the output voltage. When the duty cycle reaches 100%, the main switch is held on continuously to deliver current to the output up to the PFET current limit. The output voltage then is the input voltage minus the voltage drop across the main switch and the inductor.Short Circuit ProtectionThe MP2105 has short circuit protection. When the output is shorted to ground, the oscillator frequency is reduced to prevent the inductor current from increasing beyond the PFET current limit. The PFET current limit is also reduced to lower the short circuit current. The frequency and current limit will return to the normal values once the short circuit condition is removed and the feedback voltage reaches 0.6V.Maximum Load CurrentThe MP2105 can operate down to 2.5V input voltage; however the maximum load current decreases at lower input due to large IR drop on the main switch and synchronous rectifier. The slope compensation signal reduces the peak inductor current as a function of the duty cycle to prevent sub-harmonic oscillations at duty cycles greater than 50%. Conversely the current limit increases as the duty cycle decreaseMP2105 – 1MHz 800mA SYNCHRONOUS STEP-DOWN CONVERTERPPLICATION INFORMATIONOutput Voltage SettingThe external resistor divider sets the output voltage (see Figure 3). The feedback resistor R1 also sets the feedback loop bandwidth with the internal compensation capacitor (see Figure 1). Choose R1 around 500k Ω for optimal transient response. R2 is then given by:1V6.0V 1R 2R OUT−=Table 1—Resistor Selection vs. OutputVoltage SettingV OUT R1 R2 1.2V 499k Ω (1%) 499k Ω (1%) 1.5V 499k Ω (1%) 332k Ω (1%) 1.8V 499k Ω (1%) 249k Ω (1%) 2.5V 499k Ω (1%)158k Ω (1%)Inductor SelectionA 1μH to 10μH inductor with DC current rating at least 25% higher than the maximum load current is recommended for most applications. For best efficiency, the inductor DC resistance shall be <200m Ω. See Table 2 for recommended inductors and manufacturers. For most designs, the inductance value can be derived from the following equation:()OSCL IN OUT IN OUT f I V V V V L ×Δ×−×=where ΔI L is Inductor Ripple Current. Choose inductor ripple current approximately 30% of the maximum load current, 800mA.The maximum inductor peak current is:2I I I LLOAD )MAX (L Δ+= Under light load conditions below 100mA, larger inductance is recommended for improved efficiency. Table 3 lists inductors recommended for this purpose.Table 2—Suggested Surface Mount InductorsManufacturer Part Number Inductance (μH)Max DCR (Ω)SaturationCurrent (A)DimensionsL x W x H (mm3)Coilcraft D01605T-472 4.7 0.150 1.20 5.4 x 4.2 x 1.8 Toko D52LC 4.7 0.087 1.14 5 x 5 x 2 Sumida CR43-4R7 4.7 0.109 1.15 4.3 x 4.8 x 3.5Table 3—Inductors for Improved Efficiency at 25mA, 50mA, under 100mA Load.Manufacturer Part Number Inductance (μH)Max DCR (Ω)SaturationCurrent (A)I RMS (A)Coilcraft DO1605T-103MX10 0.3 1.0 0.9Murata LQH4C100K04 10 0.2 1.2 0.8 Sumida CR32-100 10 0.2 1.0 0.7 Sumida CR54-100 10 0.1 1.2 1.4Input Capacitor SelectionThe input capacitor reduces the surge current drawn from the input and switching noise from the device. The input capacitor impedance at the switching frequency shall be less than input source impedance to prevent high frequency switching current passing to the input. Ceramic capacitors with X5R or X7R dielectrics are highly recommended because of their low ESR and small temperature coefficients. For most applications, a 4.7μF capacitor is sufficient. Output Capacitor SelectionThe output capacitor keeps output voltage ripple small and ensures regulation loop stable. The output capacitor impedance shall be low at the switching frequency. Ceramic capacitors with X5R or X7R dielectrics are recommended. The output ripple ΔV OUT is approximately:()⎟⎟⎠⎞⎜⎜⎝⎛××+×××−×≤Δ3Cf81ESRLfVVVVVOSCOSCINOUTINOUTOUTPCB layout guidePCB layout is very important to achieve stable operation. It is highly recommended to duplicate EVB layout for optimum performance.If change is necessary, please follow these guidelines and take figure 2 for reference.1) Keep the path of switching current short andminimize the loop area formed by Input cap,high-side MOSFET and low-side MOSFET. 2) Bypass ceramic capacitors are suggested tobe put close to the Vin Pin. 3) Ensure all feedback connections are shortand direct. Place the feedback resistors andcompensation components as close to thechip as possible.4) Route SW away from sensitive analog areassuch as FB.5) Connect IN, SW, and especially GNDrespectively to a large copper area to coolthe chip to improve thermal performance andlong-term reliability.INPUT2.5V - 6VOFF ONFigure 2 —MP2105 Typical Application CircuitTop Layer Bottom Layer Figure 3—MP2105 Suggested Layout (TQFN)PACKAGE INFORMATIONTSOT23-5NOTICE: The information in this document is subject to change without notice. Please contact MPS for current specifications. Users should warrant and guarantee that third party Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will not assume any legal responsibility for any said applications.MSOP10BOTTOM VIEWFRONT VIEW SIDE VIEWGAUGE PLANETOP VIEWNOTE:1) CONTROL DIMENSION IS IN INCHES. DIMENSION IN BRACKET IS IN MILLIMETERS.2) PACKAGE LENGTH DOES NOT INCLUDE MOLD FLASH, PROTRUSION OR GATE BURR.3) PACKAGE WIDTH DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSION.4) LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.004" INCHES MAX.5) PIN 1 IDENTIFICATION HAS THE HALF OR FULL CIRCLE OPTION. 6) DRAWING MEETS JEDEC MO-817, VARIATION BA. 7) DRAWING IS NOT TO SCALE.RECOMMENDED LAND PATTERNMP2105DJ-LF-P。

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HDCD、DSD、SACD、XRCD、LPCD、K2HD比较前言CD现状不知不觉间CD（Compact Disc）激光唱盘问世已有十几年光景了，像笔者一样收藏了数百甚至数千张CD的音乐爱好者、发烧友不计其数，然而在新世纪伊始，我们不得不面对这样一个现实：CD的变种（或称增强版CD）、SACD、DVD－Audio已经逐渐形成三雄争霸的局面。

作为消费者应何去何从？本文将与大家一起揭开它们的神秘面纱。

12cm 的CD 激光唱片问世至今已十几年的光景了。

由于它许多特有的优势如：小型、容易保存、频响宽、信噪比高、动态范围大，至今仍是Hi Fi 设备的主要音源。

随着人们鉴赏力的提高，CD 音源固有的缺陷也日渐突出。

同传统LP 唱片相比，CD 所播放的声音总有一点生硬感，细节少，临场感欠缺。

如果把近几年风起的VCD 音质也列于其内的话，那就更使许多烧友、行家们宛惜之声不绝了。

对于CD 这种固有缺陷，得从CD 当年制定的红皮书规格说起。

限于当时微处理技术软硬件的限制，1982年2月发布的CD DA激光唱盘红皮书标准做了如下规定：唱盘直径120mm，盘速1.2m/s，调制方式EFM，误码校正CIRC，数据速率0.6Mbps，数据量0.7GB。

如要将变化着的模拟音频信号记录到这张光盘上，首先要对模拟信号进行采样，其重现信号波形的条件基于香农定理：设信号带宽为Bw，采样频率为fs，如满足Bw<=fs/2的条件，即可完整重现原波形。

基于人耳可听到的最高频率为20kHz这一研究结果，CD的采样频率为44.1kHz，将采样所得的采样值相对于振幅进行离散的数值化操作(即量化)就可得到一系列的脉冲串，再加上CIRC纠错码、同步信号和地址信息之后，再经EFM格式调制后所得到的数据信息即可灌制到CD唱片上了。

由于受当时激光唱盘容量和芯片技术的制约，量化采用了16 bit 操作，其能够表现的动态范围D为D=20lg2＋1.76[dB]=98dB(n=16)，这就是CD的理论动态范围。

RDY-18F智能测控终端用 户 手 册目 录第一章．RDY-18F简介.......................................................................................................................................................- 2 -1．RDY-18F的结构： (2)2．RDY-18F特点： (2)第二章．RDY-18F的安装和接线.......................................................................................................................................- 3 -一、安装： (3)二、连接： (3)1．供电电源的连接：RDY-18F的供电有主电源和备电两部分。

(3)2.AD采样的连接： (4)3．频率采样的连接： (4)4．I/O输入的连接： (4)5．I/O输出的连接： (5)6.DA输出的连接： (5)7．DTU的使用和连接 (5)第三章．RDY-18F通讯.....................................................................................................................................................- 6 -第四章．PID调节..............................................................................................................................................................- 7 -RDY-18F有两路独立的PID调节。

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DAW and transport machine control is standard.The DM-4800 has a 64-channel mix platform with a “fat channel” strip in the center ofthe board, providing instant access to 4-band parametric EQ, dynamics and aux con-trols available for the first 48 channels. It features 24 mic preamps and a completelyconfigurable 24-buss routing system.ITEM DESCRIPTIO N PRICEDM3200.....................32-channel digital mixer .................................................................CALLDM4800.....................64-channel digital mixer .................................................................CALLOptional AccessoriesMU1000.....................Optional meterbridge for DM3200 or DM4800 .................................CALLIFFW/DM-MKII ..........FireWire interface card ....................................................................CALLIFAN/DM ....................8-channel balanced analog card ....................................................CALLIFTD/DM ....................8-channel TDIF digital card ............................................................CALLIFAE/DM ....................8-channel AES/EBU digital card .....................................................CALLIFSM/DM ...................Surround monitor card ....................................................................CALLIF-AV/DM ...................Aviom A-Net® Interface Card .........................................................CALLIF-CB/DM ..................CobraNet® Interface Card ..............................................................CALLPW1000CS ................Cascade cable for DM3200 .............................................................CALL (DM4800 / METER BRIDGE OPTIONAL)SYMETRIX ZONE MIX 760 Paging and music management for venues like restau-rants, bars, clubs, retail and more. Features 12 inputs (4 mic, 8 line), 6 outputs, com-pression, AGC, matrix mixing, paging, feedback elimination, filters and equalization. Set-up uses a straightforward Windows interface connected via Ethernet. Remote control isachievable with the Symetrix ARC-2I adaptive remote control wall plate. The ARC-2I is amenu-driven remote control with 24 menus, each with up to 16 enumerations that canbe used to control basic functions or initiate complex logic-based control events suchas gain, preset triggering, source selection, room combining and more.ITEM DESCRIPTIO N PRICE760............................Zone mixer, 12 inputs ...............................................................1239.00ARC-2I ......................Adaptive remote control wall plate ..............................................199.00WHIRLWIND M IX-5S All-purpose mixer for sound con t ract i ng. Offers 4 inputchannels, each with XLR and 1/4" TRS balanced con n ec t ors, suitable for mic or line-level use. An LED readout provides a visual in d i c a t ion of levels, and phantom poweris provided for operating condenser mi c ro p hones. XLR and 1/4" TRS outputs areprovided, with the XLR output mic or line level swit c h a ble. The outputs have theirown drive-circuit for isolation. An aux channel is pro v id e d with RCA input jacks forconnecting a tuner, CD player, tape player, etc.ITEM DESCRIPTIO N PRICEMIX-5S ......................Stereo mixer ................................................................................379.07MIX-5 ........................Mono version of MIX-5S ...............................................................336.898 SERIES LIVE The Yamaha log 8-group consoles with lots of features, great performance and quality sound. Each mono input223compact console package thatincludes Yamaha’s unsurpassedIXING STUDIO MW10C5D DIGITAL LIVE in two versions, the microphone preamps on the standard PM5D224AHA LS9 DIGITALExpandable digitalpact and lightweight frame with16 mono-input/4 stereo-inputconfiguration (LS9-16) or in thelarger frame, high-input capacity (LS9-32). With 32 input head amps for mic or line levelinputs plus 4 stereo inputs, the LS9-32 can comfortablyhandle the complex and varied source requirementsfor live sound applications. Both models can doublethe mono input capacity, expanding to 32 (LS9-16) orYGDAI interface cards. They have motorized 100mmlong-throw faders and a versatile bus architecture withLS9-16LS9-32M7CL-32M7CL-48AVY16-ES100MY8AD24MY8AE96S MY8AEB MY8DA96MY8AE MY8AD96MY8AE96MY16AE MY16AT MY16-CII MY16ES64MY16MD64YAMAHA CARDS FOR DIGITAL MIXERS ITEM DESCRIPTIO N PRICE AVY16-ES100 .......16-channel Ethersound network I/O card, RJ45 ....................................CALL MY4AD ..................24 bit 4-channel input card – XLR .......................................................CALL MY4DA ..................20 bit 4-channel output card – XLR .....................................................CALL MY8AD24..............8-24bit analog inputs on balanced 1/4" connectors ............................CALL MY8AD96..............24 bit/96kHz 8-channel line level analog input card (25-pin D-sub) ......CALL MY8ADDA96 .........8-channel analog I /O ............................................................................CALL MY8AE ..................8 AES/EBU digital format I /O (25-pin D-Sub) .......................................CALL MY8AE96..............24 bit/96kHz 8-channel AES/EBU digital I /O card (25-pin D-sub) ........CALL MY8AE96 ..............24 bit/96kHz 8-channel AES/EBU digital I/O card w/sample rate converter (25-pin D-sub) ...............................................CALL MY8AEB ................8-channel AES/EBU I/O card w/video input on BNC ..............................CALLMY8AT ..................8 ADAT digital format I /O (optical connectors) .....................................CALL MY8DA96..............24 bit/96kHz 8-channel line level analog output card (25-pin D-sub) .......CALL MY8-SDI-D ...........1-channel/8-multiplex 24bit HD/SDI card, w/2X BNC ...........................CALL MY8TD ..................8 TDI F digital format I /O (25-pin D-Sub) ..............................................CALL MY16AE ................16-channel AES/EBU I /O card ...............................................................CALL MY16AT ................16-channel ADAT I /O card .....................................................................CALL MY16-CII ..............16-channel Cobranet network I/O card .................................................CALL MY16ES64 ............16-channel EtherSound network I/O card, 2 Ethercon,9-pin HA remote, and 2 RJ45 cascade. Use with up to3-MY16EX cards to increase I/O to 64. .................................................CALLMY16EX ................16-channel I/O expansion card for use with MY16MD64 or MY16ES64,has 2 RJ45 cascade, uses standard CAT5 cables for interconnect ..........CALLMY16MD64...........16-channel MADI I/O card, 2-BNC, 2 optical MADI, & 2 RJ45 cascade.Use w/up to 3 MY16EX cards to increase I/O to 64. ..............................CALLMY16TD ................16-channel TDI F I /O card ......................................................................CALLLightViper fiber optic system interface cards for YGDAI-compatible Yamaha consolesVIMMY32M-T4 ......Interface card with TAC4 fiber connector ........................................1609.00 VIMMY32M-OC .....Interface card with Neutrik OpticalCon fiber connector ..................1015.00VIMMY32M-LC ......Interface card with LC fiber connector ..............................................899.00VIMMY32-S ..........Slave card, no fiber connections .......................................................740.00VIMMY32M-ST ......Interface card with ST optics ............................................................934.00Please visit the LightViper Digital Optical Snakes Systems section for more information and compatible gear.WAVES WSG-Y16 SOUNDGRID I/O CARD FOR YAMAHA MIXING CONSOLES Waves SoundGrid is a new audio networking and processing platform that delivers high precision with low latency. The WSG-Y16 brings cutting-edge SoundGrid technology to Yamaha mixing consoles. Together with a server, a Mac or PC, and iLok authorized Waves plug-ins, the WSG-Y16 lets you process 16 channels of audio using Waves award-winning plug-ins (in conjunction with Waves Multi-Rack software) directly from a Yamaha console. Features include redundancy and recovery safety net, MIDI control from the console, plus scalablilty and expand-ability, make this card indespensible to any compatible Yamaha console. Supports 44.1/48/88.2/96kHz sample rates (44.1 & 48kHz for 16 channel processing) and tranmits via Ethernet.ITEM DESCRIPTIO N PRICE WSG-Y16 ...................Mini-YGDAI SoundGrid I/O card ...................................................640.00Tenemos ventas y servicio en Español.Expertos que hablan Español disponibles en x1178 y x1164.Honesty and Valuesince 1971。

Sound & Lighting Manufacturers ListHey, take a look at our new LED lites. They work anywhere standard Littlites work! MPALLEN & HEATH..................GL 3, GL 4..........................................................................18G-HIGL 2000, 3300....................................................................18GML 3000, 4000, 5000..........................................................18XR-HI 4 PINPA12-CP, PA20-CP, PA12, PA20, PA28............................18XR-HI-4GL-4000..............................................................................12X-4 (X 2)GL 2400, GL 2800..............................................................18XR-HI-4GL 3800, GL 4800..............................................................18X-HI-4MIX WIZARD......................................................................18X-HI-4 ALTAIR..................................ELECTRA SERIES............................................................12X-HI NGLEY...........................................................................XLR-4 PINSR 6000..............................................................................XLR-4 PINSR 4000..............................................................................18GAMERICAN DJ......................XDM-352, XDM 242, XDM-3633 COMMANDER................12G-HIQ2422/SX, Q-2422/X, Q-3433/SX, Q-SPANDASM STEUERUNGSTE........R2D2...................................................................................12X-HIDX33...................................................................................6G-HIAUDIO INDEPENDENCE.....PARAGON..........................................................................12 OR 18X AVOLITES.............................AZURE SHADOW, AZURE PANEL...................................12XR-HI (SPECIAL WIRING)PEARL 2000.......................................................................12X-HI (SPECIAL WIRING)SAPPHIRE 96, SAPPHIRE 2000........................................12XR-HI (SPECIAL WIRING)DIAMOND II AND III AND 4................................................12XR-HI (SPECIAL WIRING) BEHRINGER.........................EURODESK MX8000A, 9000A, UB2442FX-PRO..............18G-HIEURODESK MX3282A, 2442A...........................................12G-HIBI AMP..................................COLUMBIA & OLYMPIA.....................................................12G CARVIN.................................FX.......................................................................................12GDX1642,1642P,2442...........................................................18X-HIFX1244,1244P,1644,2444..................................................18GMX2488...............................................................................6V BNCSL24....................................................................................18X-HI CASE....................................PROFESSIONAL 1 & 2.......................................................12XR-HI CELCO..................................NAVIGATOR 3....................................................................12GAVIATOR............................................................................18XRSERIES II GOLD................................................................12GPATHFINDER.....................................................................12GPULSAR MASTER..............................................................12GEXPLORER.........................................................................12GVENTURA 1000..................................................................12XR-HIR2D2...................................................................................12X-HICOLOR TRAN.......................MADILLION 2 -3.................................................................18XR-HI 4 PININNOVATOR.......................................................................18XR-HIENCORE.............................................................................18XR-HI 4 PIN COMPULITE.........................SPARK, SABRE. OVATION4D, MICRON 4D,SPARK4D...12XR-HI OR 18XR-HISPARK TOP, SPARK, PHOTON, RAVE............................12XR-HI OR 18XR-HI CRATE..................................CSX SERIES......................................................................12G-HI OR 18G-HICREST AUDIO......................OLD STYLES......................................................................12GSP,TC,GT,LM, X-FOUR.....................................................12X-HIGTX,VX, LMX, V-12............................................................18XR-HICENTURY GT AND VX......................................................18X-HIX-EIGHT, X-MONITOR, X-VCA..........................................18X-HIHS-48+4..............................................................................18XR-HIXR-20, XR-24, XR-M...........................................................12G-HIHP-8....................................................................................18G or 18G-LEDHPW...................................................................................18G-HID & R.....................................MERLIN..............................................................................12XR-HIVISION................................................................................18XR-HIORION................................................................................18XR-HITRITON..............................................................................18XR 4 PINAXION.................................................................................18XR 4 PIN DDA.......................................CS3, CS8, CS12.................................................................18XR-HIFORUM, Q2........................................................................12X-HIINTERFACE........................................................................12GDEVON..............................SMX-2000..............................................................................12G-HI DOD...................................822XL, 822RM.......................................................................12G-HI1222XL, 1222RM....................................................................12G-HICM300, 350, 750, 1642..........................................................12G-HI DENON..............................SMX 200DJ............................................................................6G-HISMX 2000...............................................................................12G-HI DOVE.................................1Q 24.....................................................................................12GTS48D....................................................................................12G-HIE-MU..................................MP-7, XL-7, PX-7...................................................................12G-HI ELECTRA...........................18:8:2, 24:8:2, 32:8:2, 40:8:2,................................................12X-HI48:8:2.....................................................................................12X-HI ELECTRO VOICE/TELEX..BK 32 AND 43SERIES...........................................................12GEVT 52 SERIES.....................................................................12GELAN......................................................................................12-18G-HIINTERFACE CONSOLES......................................................18XR-HIVECTOR................................................................................12GPSX1000, 1600, 2200............................................................12 or 18X ETC....................................EXPRESS SERIES...............................................................18X-HIOBSESSION SERIES............................................................18XR-HI FENDER............................PX 2208..................................................................................12G-HIPX 2208D...............................................................................12G-HIPX 2212D...............................................................................12G-HIPX 2216D...............................................................................12G-HIMX-5200.................................................................................18G-HIMX 5232.................................................................................18G-HIFLYING PIG.......................WHOLE HOG 1 & 2...............................................................12XR-HI FROG.................................FROG 2, FROG 24/48, FAT FROG, FROG BOX,.................18XR-HIFAT FROG, BULL FROG, LEAP FROG, MAMBO FROG GLI.....................................PMX 7000, 8000, 9500, 9900.................................................12G-HIGEM SOUND.....................DS 9000, 9905, DSP-6PRO...................................................12G-HIDMX-6, 52..............................................................................12G-HIDMX-525, 1030 & 1070..........................................................12G-HIMX-5216,5224,5232, MP3-PRO.............................................12G-HI GEMINI..............................TURNTABLES.......................................................................12G-HIHIGH END..........................STATUS CUE,.......................................................................12 OR 18X-HIPOWER CUE.........................................................................12G INKEL.................................CMX 1664..............................................................................18G INNOVASON......................SY80......................................................................................18XR-HI-4 (X 4)SY48......................................................................................12X-HI (X 2) INTER M............................CMX 1264/1664/2464.............................................................18G-HIKENSINGTON.......................................................................18XR-HI-4 JANDS...............................ESPII-24,................................................................................18XR-HIESPII-48, 60...........................................................................18XR-HI (X2)EVENT 24..............................................................................18XR-HI (X2)EVENT 36,48, 408, 416.........................................................18XR-HI (X2)EVENT PLUS 48 AND 60......................................................18XR-HI (X2)JANDS HOG 250, 600...........................................................18XR-HI (X2)HOG 500................................................................................18XR-HIHOG 1000..............................................................................18XR-HI (X2) JUICE GOOSE...................RP-100, RP-200-L..................................................................12G LEPRECON LLC................850.........................................................................................12XR1500.......................................................................................12G1600.......................................................................................12G2000.......................................................................................18XR-HI3000.......................................................................................18XR-HILP-X24, LP-X48.....................................................................12XR-HI 4 PIN (2) LMI.....................................CH 200...................................................................................12GDESIGNER............................................................................12G LSC....................................FOCAL CONSOLES..............................................................12X-HIFOCAL TOURING DIMMING................................................12X-HIATOM.....................................................................................12XR-HIAXIOM....................................................................................12X-HIMAXIM S, MAXIM M..............................................................12XR-HIMAXIML, MAXIMXL, MAXIM XXL..........................................12XR-HI (2)LINEARTECH.................................SL-2600, SL-3100, SL-4600.......................................12G LIGHTRONICS...............................TL-2448......................................................................18G-HI LITEPUTER........................................................................................................................18G-LED MA..................................................GRAND MA, LIGHT COMMANDER 48/6..................18XR-HI (X2)LIGHT COMMANDER 24/6........................................18XR-HIGRAND MA LIGHT, GRAND MA ULTRA-LIGHT......18X-HIGRAND MA MICROLIGHT COMMANDER 12/2 19".................................18X-HILIGHT COMMANDER 12/2, SCANCOMMANDER 19"MACKIE1604...........................................................................18G-HIOTTO 1604................................................................6G-HISR 24-4 VLZ PRO, ONYX 1640...............................18G-HISR 40.8, SR 56.8,......................................................18X-HI-4 PINCFX12, 1642-VLZ, ONYX 1620.................................12G-HICFX16........................................................................18G-HICFX 18, CFX20..........................................................18G-HISR24-4 VLZ PRO.......................................................18G-HISR32-4 VLX PRO.......................................................18G-HIONYX 4880, ONYX 4080, ONYX 3280......................18X-HI-4 (X3)ONYX 2480................................................................18X-HI-4 (X2)TT24...........................................................................12X-HI-4ONYX 24-4.................................................................18G-HI MARTIN.........................................CASE CONTROLLER P1, P2....................................18XR-HICASE CONTROLLER P1+, P2+................................18XR-HICASE CONTROLLER PLAYBACK WING.................18XR-HI MIDAS.............................................MIDAS, XL3, XL200, XL250, LEGEND.....................18X-HIHERITAGE 1000, 2000, 3000...................................18XR-HIXL-4...........................................................................12G-HIVENICE,....................................................................18X-HI-4 PINVENICE,....................................................................18X-4-LED-ISOHERITAGE 4000, SIENA, VERONA..................................18XR-HIMOOG MUSIC...............................VOYAGER................................................................12X-HI MITEC.............................................EVENT......................................................................18X-HI NSI..................................................PMC, TC...................................................................18X-HIMEL, MLC, 7424, 7500, 7532....................................12, OR 18G-HI NUMARK.........................................DM 1600X..................................................................12G-HI PANASONIC...................................WR-SX-1...................................................................12G-HI PEAVEY..........................................24-FX, 32-FX.............................................................12G-HIS-24...........................................................................18G-HI PHONIC..........................................DX SERIES...............................................................18G-HI PULSAR..........................................MASTERPIECE.........................................................12G RACKMAN......................................INNOVATIONS.........................................................12G-HI RAMSA...........................................SX-1..........................................................................12G OR 12G-HIWR-S840...................................................................12 OR 18G-HIWR-C900..................................................................12 OR 18G-HIWR-4000...................................................................12 OR 18G-HIROSS MIXING................................RCS 2842..................................................................12X-HIPC 8400....................................................................12G802, 1202, 1602, 2402...............................................12GSEE FACTOR.................................LD-500, LD-1000.......................................................12XR-HI SPECIAL WIRING S OUNDCRAFT...............................EUROPA, SERIES 2, SERIES 5 MONITOR & FOH18XR-HI 4-PINVIENNA, VENUE, DELTA.........................................18G-HIK-3 AND SM12, SM20..............................................18X-HI-4 PINK-2, MH3, MH4..........................................................18XR-HI-4SPIRIT 8 (24-40 CHANNEL......................................18X-HI-4 PINSPIRIT LX-7..............................................................18X-HISPIRIT MONITOR (24-40 CHANNEL)......................18X-HI-4 PINGB-4/16, GB-4/24, GB-4/32, GB-4/40.......................18X-HI-4 (2)GB-2/16, GB-2/24, GB-2/32......................................18X-HI-4SOUND TECH4150, 306D, 308D, ST-122, PC 803, PC1250...........12G-HIPANORAMIC.............................................................12G-HIST 164.......................................................................18GDJ 252, 262D............................................................12G-HISOUNDTRAC.................................MEGAS STAGE........................................................18G-HIMEGAS 2..................................................................18X-HISEQUEL....................................................................18X-HISEQUEL 2.................................................................18X-HISOLO........................................................................18G-HISOLO 8.....................................................................18X-HI STRAND.........................................500 SERIES..............................................................18X-HI STUDIO MASTER...........................SHOW MIX................................................................12 OR 18G-HISTAGEMASTER.......................................................12 OR 18G-HI TAPCO............................................BLEND 16.................................................................18G-HITAC(TOTAL AUDIO CONCEPTS)..SR 6000....................................................................18X-HI TACTILE TECHNOLOGY...............M4000.......................................................................18G-HI TARGET.........................................Q 328+6....................................................................12X-HIL 160+5.....................................................................12X-HIL 244+5.....................................................................12X-HI TASCAM.........................................200, 300....................................................................12G THEATRELIGHT.............................ALL MODELS............................................................N/A ULTRALITE.....................................MISSION CONTROL VX2.........................................18XR-HIMISSION CONTROL 1024........................................18X-HIVARI-LITE.......................................ALL MODELS............................................................18X-HI VOCO PRO.....................................KJ6200,PKJ-9090 PRO, KJ7800 PRO......................12G-HI YAMAHA.........................................PM 2000....................................................................18G-HIPM 1800A..................................................................18XR-HI-4 PINPM 3000 & 3500........................................................18XR-HI-4 PINPM 4000. PM 6000....................................................18XR-HI-4 PINPM-5D, PM-5D-RH....................................................18XR-HI-4 PINM3000.......................................................................18XR-HI-4 PINM2500.......................................................................18XR-HI-4 PINMX12/6, MV12/6........................................................12X-HIMX20/6, MV20/6........................................................18X-HIEMX 5000..................................................................18X-HI9000 PRO KYBD.......................................................18XR-HI-4 PINDM 2000 Ver 2..........................................................18XR-HI-4 PIN ZERO 88.........................................FROG........................................................................12XR-HIFAT FROG................................................................18XR-HILEAP FROG..............................................................12XR-HIBULL FROG..............................................................12XR-HILIGHTMASTER XL...................................................18XR-HILIGHTMASTER XLS.................................................18XR-HIILLUSION, SIRIUS 250, 24.......................................12XR-HI3G LIMITED........................................................................................................................18X-HIRight Angle 4 Pin XLRP SeriesPermanentG SeriesBNC Connector4 Pin XLR 3 Pin XLRRight Angle3 Pin XLRFor questions on any Littlite product contact: Littlite/ LLC, P. O. Box 430, Hamburg, MI 48139-0430PH810-231-9373orFAX810-231-1631,******************,Limited Lifetime Warranty Made in the USA Copyright Littlite LLC 2006 Publication #28-1024 6/2006This information is accurate to the best of our knowledge. Please consult your owner's manual.。

将NEC CD-ROM改装成为发烧转盘当今世界上的发烧转盘的机芯中分几大流派，一是欧洲派，代表是PHILIPS。

一是日本派，代表是SONY。

到现在发展得很快的是日本派，它派生出几大厂家:DENON.PIONEER .TEAC.SONY和CEC几大名机芯。

反而PHILIPS如夕阳西下，至今只有CDM12系列，怪都怪PHILIPS几年前上任的总裁，砍掉了许多不怎么盈利的项目。

如今的台式CD机在PHILIPS机芯方面选择只有三种VAM1201(1202)、VAM1205(相当与CDM1210)和VAM1252(也就是Industrial PRO)，最新的VAM22系列没有量产。

我们知道Naim有一款CD机已使用了VAM1205。

再好的VAM1252，也就是MARK LEVINSON，还有MARANTZ CD7等高级CD机使用的那种。

都是直线寻迹系统，说真的我个人一直喜欢PHILIPS过去的摇臂系统，它的制作令我深深着迷，但今天的CDM12系列令我大为反感，想想PHILIPS过去的摇臂系统，从CDM1、2、3、4到CDM9，除较为笨拙CDM1和有一点设计问题的CDM2，后三个可以说是经典制作。

在当时的发烧转盘如Krell、Wadia无一不是用PHILIPS 的摇臂系统CDM1、2、3、4到CDM9都有选用。

到了今天基本的发烧厂家都选用日本的机芯如：CEC皮带传动系统TEAC的VRDS先锋公司超稳定性转盘结构SONY的光头固定旋转系统SONY的磁悬浮也相当不错(现在只有在Accuphase CD 机才能看到，可惜都是天价)。

现在SONY的有213c(213vcd)和240a，以前常见的212a/b也停产。

240相对213好一点。

DENON S10用240a。

TEAC也是使用SONY 的光头，只不过传动系统是使用自己的VDRS。

说到传动系统，PHILIPS能提供也确实不那么让人满意，塑料的，看起来一点都不“烧“。

Owner’s Manual 使用说明书RAP-1580 Surround Amplified Processor 环绕声放大器洛得产品符合电气和电子设备限制有害物质（RoHS） 以及处理废旧电气和电子设备（WEEE）的国际指令。

带叉形符号的轮式垃圾箱标志指合乎规定，且该产品应根据这些指令以适当的方法进行回收或处理。

引脚分配平衡音频（3个平衡极点）:脚1:地极/屏蔽脚2:同相/+正极/热脚3:异相/-负极/冷注意RS232连接只能由获授权人士进行。

警告：机内无客户可以维修的部件，请合格的维修人员维修。

警告：为减少火灾或触电的危险，不要将本产品置于潮湿环境中或水中；不要将本产品置于滴水或溅水环境中；不要将含有液体的物件（例如花瓶）放在本产品上；不要让异物进入本产品外壳内。

如果本产品进入潮湿环境中，或异物进入本产品内，立即从墙上拔掉电源线。

将本产品送交合资格的维修人员检查或进行必要的维修。

请仔细阅读所有说明。

请保留所有说明手册。

请留意这些说明和装置上的所有警告。

请遵从操作说明。

不要在接近水的地方使用本装置。

只能用干布清洁。

不要堵塞本装置任何通风口。

请依照制造商的指导进行安装。

请勿将本装置安置于靠近辐射、热源、火炉或其它发热器具（包括放大器）的地方。

请注意两极插头或接地插头的安全作用。

两极插头有两个插刀，其中一个 插刀比另一个宽。

接地插头有两个插刀和第三个接地插刀。

这些都是为了您 的安全。

如果随本产品提供的插头与您的插座不匹配，请咨询电工更换陈旧 的插座。

请合理放置电源线，避免踩踏或挤压插头、简易插座以及从本装置拔插的 部分。

只能使用制造商指定的附件或配件。

只能使用制造商指定或随本装置一同出售的机架、立架、支架或桌子。

在支架或机架上移动本装置时，请小心避免因机器或机架翻倒导致受伤。

雷暴天气中或本装置长时间不使用时，应将电源插头从插座中拔出。

若本装置有任何损坏，如电源线或插头损坏，异物或液体进入装置中，本装置遭受雨淋或受潮，本装置显示不正确操作的迹象或本装置跌落时，立即停止使用，并请合格维修机构检测和维修。

轻量化标杆：I.C.E. AIR15卡宾枪作者：毛翔来源：《轻兵器》 2015年第3期毛翔处处彰显轻量化设计事实上，I.C.E AIR15卡宾枪是I.C.E.训练公司和麦格战术系统公司合作的产物，其核心就是降低整枪质量，并选择加装多种必备轻量化附件。

AIR15卡宾枪最大的特点在于其质量轻，空枪质量仅2.1kg，可以说是同类枪械中质量最轻的。

之所以能够获得如此轻质量，在于全枪采用了多种有利于减重的设计。

例如，该枪械最主要的金属部件——上、下机匣，采用高强度镁铝合金制成，比常用于枪械制造的航空铝合金还要轻35%。

但为提高这种合金材料的使用性能，上、下机匣表面采用SniperGray公司的Cerakote涂层处理，处理后机件表面附着一层磷镍防腐耐磨涂层，可极大提高机件的可靠性和耐腐蚀性。

其他功能部件，除必须耐受高温高压的部件（如枪机、枪机框）仍使用传统的不锈钢外，尽可能使用较轻的合金。

比如与枪机配合的拉机柄采用了BCM公司的轻量化“枪战士”Mod 4拉机柄。

枪管采用自由浮置式设计，作为耐受高温高压工作环境的主要部件，枪管仍为钢制，但整体经减重处理，比如枪管外径约为12.7mm，比绝大多数同口径枪械的枪管都要细一些。

其枪管长406mm，内部膛线导程为203mm，内表面经镀铬处理，可稳定发射5.56mm北约弹。

枪管前端的制退装置为已经取得专利的“蝰蛇”制退器，该制退器与一般制退器设计不同。

其外观为圆柱状，左右侧各有一道较宽的纵向凹槽，每道凹槽内制有3个排气孔；制退器上方同样制有3道较宽的横向凹槽，每道凹槽内亦各有3个排气孔；制退器前端面口部沿圆周均布有6个排气孔。

制退器的设计有效起到抑制枪口上跳的作用。

当然，枪口前端也可换装其他款型制退器。

至于包裹在自由浮置式枪管外面的护手，AIR15卡宾枪采用了质量更轻的碳素纤维材料，它由AP定制（APCustom）公司生产，圆形护手表面经镂空处理，可进一步降低质量，亦有助于散热。

细数十大败金CD主机1、美国麦景图 MX5000规格表败金价：￥18000解码芯片：双24Bit DAC/HDCD编码器安装尺寸：188Wx168Dx58H(mm)频响范围：20Hz～20KHz动态信噪比：110dB主机重量：2.3kg【McIntosh MX5000】MX5000是麦景图车载主机的顶级产品之一，外形为McIntosh的经典设计——铜质外壳、玻璃面板加“蓝眼睛”湖水蓝背景显示，该主机的一大特色是采用了BURR-BROWN公司提供的24Bit数模转换器（DAC）及HDCD编码器，再次显示了麦景图在技术上的超前预判力。

DAC（数/模转换器）代表将数字信号转换成模拟信号的能力，数值越高意味着输出信号的失真度越小、越稳定，目前中高端主机大多采用24位DAC。

HDCD编解码技术应用在车载电子产品中还不多见，其全称为“高分辨率可兼容数码技术”。

这是一种新型的音频处理技术，它以高于CD （44.1KHz/16Bit）的88.1KHz采样率、24比特进行音质数字处理，充分发挥了24位DAC的性能，使输出的音质更细腻、信噪比更高，动态范围更广、容量更大，音色也更为逼真。

可与MX5000配合使用的CD控制中心MDA5000，也内置有HDCD编码转换器，而且每个声道都采用了一片24Bit DAC，及24位数码滤波和8倍采样率，经它转换后可获得高信噪比的模拟音频信号。

点评：麦景图公司成名于电子管放大器的制造，在迄今五十多年的发展中，树立了“高保真、高品质、高可靠”的口碑，同样让人难忘的还有其高昂的售价。

MX5000是一款纯音乐类单碟主机，适合高保真的CD、HDCD格式的音频播放，是Hi-End设备不可多得的音源。

2、日本中道CD-700II规格表败金价：￥11800解码芯片：24Bit DAC信号输出：RCAx2信号输入：AUXx2安装尺寸：178Wx159.5Dx49.5H(mm)频响范围：15Hz～30KHz动态信噪比：105dB主机重量：1.6kg【中道CD-700II】早期的DOLBY设备、磁头卡座等产品的问世让NAKAMICHI（中道）公司声名远播，进入上世纪八十年代后期，中道研发的汽车音响更以造型简朴、音效非凡著称，在CD-700基础上经改良的主机CD-700II，是通过机械和电子工程技术的改进来提升音质的一个典型代表。

丹拿Dynaudio音箱评测汇编（二）Audience（听众）系列物有所值的丹拿—听众52丹拿(Dynaudio)是丹麦一家扬声器单元和音箱制造公司，厂子不算大，可名声不小。

不少世界名牌音箱采用了它的扬声器单元而大放异彩，同时这些单元往往也单独向发烧友出售，因而丹拿的扬声器单元在发烧圈十倍受青眯。

尽管售价不菲，但对DIY而言无疑物超所值。

本文并非要介绍丹拿最新的音箱和单元，而是介绍它前两年推出的Andiencd听众52书架箱，这是为什么呢?大家知道，从2000年起丹拿停止向外单独出售扬声器单元。

毫无疑问，这对丹拿情有独钟的DIY们来说，绝对是个坏消息。

这意味着从此之后，他们只能以更大的代价直接选购丹拿的成品音箱才能一饱耳福。

老实说，丹拿的多数音箱其貌不扬，可音质好而奇货可居，要价颇高让人却步。

因此对于大多数发烧友来说，唯一的希望是眼睛向下盯着它的“低价”位音箱，或许会有所获。

这是因为，丹拿的扬声器单元型号不多，就是屈指可数的那么几款，可款款是精品，虽说是“低价”音箱，所用的单元也就没有另外选择的余地，从而使其“低价”音箱的素质也令人刮目。

当然，丹拿的“低价”音箱，其实并不“低”，以最小的书架箱“听众42”而言，约合人民币6000元。

本文要介绍的稍大—号的“听众52'’书架箱约7000多元，对我国发烧友来说应该是中高价位了，但其素质也决非市面上3000元级别的书架箱可比。

至于是“物有所值”还是超值，不妨看过本文后再去仔细听—听，想必不难作出自己的判断。

特点丹拿的“听众”(Andiencd)先后有两个版本，本文介绍的“听众52'’是第二版本，这是一款两单元二分频倒相型书架箱。

“听众52'’中的低音单元为17W75，采用φ170mm聚丙烯振膜。

这个低音单元成名于10多年之前，这些年来虽有所改进，仍一直沿用老的型号。

塑料振膜具有重量轻、强度高等优点，但往往也伴随有其固有的音染，不易为听音要求高的发烧友接受。