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阿尔派CDA7990j使用说明书阿尔派CDA7990j调音台说明书一、MIC—为话筒插口（低电平信号）LINE—为线路插口（高电平信号）INS—为断点插口LEX FX 效果器发送GAIN—增益控制旋钮MIX SUB 接口为HF—输入通道高音均衡MID—输入通道中音均衡LF—输入通道低音均衡AUX1—AUX3—为辅助输出控制口旋钮PAN—声向定位控制旋钮FAD—通道信号衰减推子MIX –L-R —主通道信号衰减推子（左右主输出）STEREO—立体声IN—输入OUT—输出BRIDGE—桥接VIDEO—视频AUDIO—音频 ON—开 OFF—关phones—耳机插口MONO—单声道监听EFX—效果器SEND—效果发送RETURN—效果返回CLIP—峰值指示灯 CUT—剪切 LED—发光管PFL—监听TAPE—磁带机（TK）IN PUT—输入 OUT PUT—输出MUNE—通道哑音开关二、DIR 直接输出插孔，用作多轨录音或信号送出，平衡式。
MIC XLR平衡式话筒输入。
LINE 线路输入插口，用于连接电子乐器及CD、卡座等。
INS 断点插口，经处理后的信号可经此口返回信号路途。
SENS 增益控制旋钮100H z 低音切除开并HF 输入高音均衡器旋钮MID 中频修饰扫描点MID 中频均衡器旋钮LF 低音均衡器旋钮AUX1 PRE 辅助通道（推子前均衡后）AUX2 POST/PRE 辅助通道（可选择推子前或推子后）LEX FX POST 效果器输出（均衡后）PAN 声向定位旋钮ON 通道哑音开关MIX或SUB 选择主输出口（MIX：主输出 SUB：副输出）PFL 输入通道预监听开关FAD 分路通道衰减器三、MIC话筒输入+48V幻像电源（电容话筒专用）LINE线路输入（CD、卡座等音源等输入信号）DIRECE OUT直通输出（多轨录音机专用）INSERT断点口（做单声道处理用）Φ相位倒相开关（可将话筒相位倒相）INPUT SENS信号增益旋钮100HZ（100HZ低音剪切键）HF高音均衡旋钮HMID中高频扫描旋钮（选择修饰频点）HMID中音均衡旋钮HMID中低频扫描旋钮（选择修饰频点）HMID中低音均衡旋钮LF低音均衡旋钮EQ均衡选择按键AUX1 PRE 辅助输出1（推子前、均衡前）AUX2 PRE 同上AUX3 PRE 同上AUX4 POST/PRE （可选择在推子前或推子后）AUX5 POST 辅助输出5（推子后、均衡后）AUX6 POST 同上PAN 声像定位MIX 通道选择开关（主通道）1-2 编组通道选择开关3-4 编组通道选择开关MUTE 哑音开关M1 矩阵M2 矩阵M3 矩阵M4 矩阵 PFL 预推子监听。
音响入门如此惬意Original（原创）OPA-Q2.1DSD解码耳放功放一体机文/家祺图/小路产品零售价：¥2,680元/台（不包括蓝牙模块，蓝牙模块需外加¥380元）39EDUIPmENT REVIEUJ点指兵兵原创Original多年来专注于CD机的研发和生产，而且一直坚持价廉物美的路线，短短几年便成为国产CD机名牌，在发烧友中有着很好的□碑。
近几年音响市场发生了微妙变化，随着数码时代的来临，数字播放器的兴起，CD唱片不再是人们欣赏音乐的唯一途径，CD机的市场也逐渐缩减，原创开始淡出大家的视野。
2016年原创迎来了契机，新的股东与新的技术加入，让原创重新活跃起来，接连推出新型号CD机，并有黑胶唱盘、数播、电源滤波、胆机耳放等多种新产品。
原创之前推出了一系列"双修”胆石功放，可以接喇叭可以接耳机。
我们就曾试用过其中的OPA-5A和4A,效果好，性价比高。
Q2.1是这个家族的新成员，保持双修概念，转为石机风味，依然是高性价比的路线。
而价位则比OPA-4A更低，可以满足更多不同□味、不同预算的发烧友。
＞高清解码Q2.1外壳使用航空铝材CNC精密加工，小巧精致而坚固，有一定抗震作用。
小小机器内有乾坤，功能多多，除了解码耳放外还支持连接扬声器。
后级功率也达到40W@4Q的水平，推一些灵敏度高的音箱比较宽裕。
作为一款入门定价的一体式产品，Q2.1也有它的讲究。
原创对每一部分都不马虎。
解码方面Q2.1采用AKM高端解码芯片，支持32bit/384kHz PCM,DSD256规格的音频解码，完全跟得上现在的高清音频潮流。
接□则配备了一个USB—个同轴，同时满足用电脑和用传统转盘的用户。
USB连接采用XMOS的方案，windows系统需要安装驱程，不过无需设置，连接质量高，是比较方便的USB方案。
＞用心的放大部分模拟部分采用两颗全分立设计的双运放元件做滤波电路，再使用模拟音频处理模块，消除生硬的数码味及数字电路噪声，使Q2.1声音更为自然，更接近"模拟声”。
The M-DL-ADAPT ‘letter -box’ adapter can be fitted to any dLive I/O Port to enable the use of iLive / GLD option cards (M-Dante, M-Waves, M-ES-V2, M-ACE, M-MADI). It provides a 64x64ch 48kHz interface with built-in Sample Rate Conversion.1. Switch the system off.2. Remove the 4 screws securing the I/O Port blank panel on the dLive MixRack or Surface. Use a star Torx T8 screwdriver.3. Slide the adapter into the slot and press it firmly into the mating connector.4. Secure the adapter by tightening the 4 thumb screws.1. Switch the system off.2. Remove the 2 screws securing the blank panel over the adapter ‘letter -box’ slot using a star Torx T8 screwdriver.3. Slide the option card into the slot and press it firmly into the mating connector.4. Secure the card using the 2 screws.232Use the I/O screen to patch signals from or to the I/O Ports.Use the MixRack / Audio / Audio Sync screen to select the clock source. Set this to Internal on the master system, or to the relevant I/O Port on all other networked systems.The functions of the adapter and option cards are determined by the firmware (operating software) that the dLive system runs. Firmware is updated regularly as new features are added and improvements made.Check for the latest version of dLivefirmware.For more information on setup and functions please refer to the dLive Firmware Reference Guide available for download at .A lim ited one year manufacturer’s warranty applies to this product, the conditions of which can be found at: /legal .This product complies with the European ElectromagneticCompatibility directive 2004/108/EC and the European Low Voltagedirective 2006/95/EC.Any changes or modifications to the product not approved by Allen & Heath could void the compliance of the product and therefore the user’s authority to operate it.Copyright © 2015 Allen & Heath. All rights reserved.Allen & Heath Limited, Kernick Industrial Estate, Penryn, Cornwall, TR10 9LU, UKALLEN &HEATH。
爱浪音响说明书爱浪音响说明书篇一：爱浪音响AT 爱浪音响AT-9带MP3播放功能，可接移动USB存型号：AT-9 品牌：爱浪原产地：中国类别：电脑、影音数码 / 视听器材 / 视听周边设备关键字：爱浪音响 , AT-9 , 猪猪音响单价：CNY ￥ 420 / 件发布时间︰ 201X/02/18 公司信息详细信息最少订量：1 件更新时间︰ 201X/06/13 广州艾特数码科技有限公司免费会员国家/地区︰广东省广州市经营性质︰贸易商联系电话︰ 130******** 联系人︰陈为国 (经理) 最近登入︰ 201X/10/26 该公司所有产品信息 (15) 产品描述所有功能采用触模式双360自然声场扩展技术人性化的设计触摸控制系统高度集成，全自动化SMT安装系统 LEA无损能量放大技术高效率的电力供应系统超级高保真放大器模块特殊的气流优化设计，避免失真和共振高稳定性、一流的音质通过耳机插孔连接外接音源播放音乐插上U盘或储存卡就可直接使用，通过遥控器和触摸控制来选择及控制，还可以连接MP3、MP4、手提电脑、移动电话、CD、DVD、私人电脑、PSP等，可爱的小猪可以让您在房间的任何角落享受音乐 ? ? ? ? ? ? ? ? ? ? ? 摆放车内，可爱的粉红色又惹人喜爱；抚摸它的两只小耳朵，音量就可变换；发光的小嘴，带给您震撼摇滚的动感；可匹配一根车载点烟器连接线，车载小猪！是您旅途的贴身伴侣，能陪伴你在旅途消除疲劳的小猪！爱浪AT-９—时尚.前卫的全方位多媒体数码音响。
选择爱浪数码多媒体音响的五大理由：第一大理由爱浪音响ＡＴ－９在外观上采用了独特的水晶小猪的外形设计，可爱动人、前卫，成为众多爱美人士的首选，并且采用了在爱浪高档产品上采用的全烤漆工艺，独制的高分子材质，使机器更加结实耐用，水晶外观的透亮。
第二大理由爱浪音响在家用音响上采用的专利设计全感应式触摸操控系统，只要摸到小猪仔的左右两只小耳朵，就能调节音量大小。
music hall pa2.2INSTRUCTION MANUALmusic hallCONGRATULATIONS ON YOUR PURCHASEYou have selected an exceptional phono preamplifier. Each component used in the construction of the pa2.2 was selected to provide you with superior performance and the highest level of sound reproduction available today. We know of no phono preamplifier that costs as much to produce yet sells for so little. The precise and elegant design of this phono preamplifier makes it easy to install and operate. Please take a few moments to read over the operating instructions to ensure that you get the best performance from your preamplifier and years of trouble-free service.SAFETY GUIDELINESThis product is designed and manufactured to strict quality and safety standards. However, you should be aware of the following installation and operation precautions:1.Take heed of warnings and instructionsRead all the instructions before connecting or operating the preamplifier.Keep this manual so you can refer to these safety instructions.2.Water and MoistureTo reduce the risk of fire or electric shock, do not expose the phono preamplifier to moisture or water. If the phono preamplifier is exposed to moisture, immediately disconnect the power cord from the wall. Take the preamplifier to an authorized music hall service center for inspection. Do not touch the phono preamplifier, power cord, or plug with wet hands.3.Object or liquid entryDo not allow foreign objects or liquids into the unit. If this happens, immediately disconnect the power cord from the wall and take the unit to an authorized music hall service center for inspection.4.HeatKeep the phono preamplifier away from naked flames, radiators, heat registers, stoves, or any other heat-producing appliances (including amplifiers).5.ClimateThe phono preamplifier has been designed for use in moderate climates. Do not attempt to use below 41 degrees Fahrenheit (5 degrees Celsius) or above 95 degrees Fahrenheit (35 degrees Celsius).6.Racks and StandsPlace the phono preamplifier on a fixed, level surface strong enough to supportits weight. Do not place it on a moveable cart that could tip over. We recommend only using stands approved for use with audio equipment.7.CleaningA soft towel can be used.8.Power SourcesConnect the phono preamplifier only to a power supply of the type and voltage described in the operating instructions or specified on the rear panel of the unit.9.Power-cord protectionConnect the phono preamplifier to the power outlet only with the supplied power supply. Do not modify the supplied power supply in any way. Do not attempt to defeat grounding and/or polarization provisions.Do not use extension cords.Do not route the power cord where it will be crushed, pinched, bent at severe angles, exposed to heat, or damaged in any way.10.Non-use periodsIf the preamplifier is to be left unused for a long period of time, the power supply should be unplugged from the wall outlet.11.Damage Requiring ServiceStop using the phono preamplifier immediately and have it inspected by an authorized Music Hall service center whenever:1.The power supply cord or plug has been damaged.2.The phono preamplifier has been exposed to rain.3.The phono preamplifier does not operate properly.4.The phono preamplifier has been dropped or damaged.5.Smoke or any unusual smell is detected from the phono preamplifier. GETTING STARTEDThank you for purchasing the Music Hall pa2.2 usb phono preamplifier. This manual provides valuable information that will help you get optimum performance from your system. Please contact your authorized Music Hall dealer for any additional clarifications you may require. Save the shipping carton and all enclosed packing material for future use. Shipping or moving the pa2.2 in anything other than the original packing material may result in severe damage that is not covered by the warranty. Be sure to keep the original sales receipt; it is your best record of the date of purchase, which you will need in the event warranty service is required.SET-UPThe pa2.2 may be used in either MM (moving magnet) or MC (moving coil) mode according to the construction principle of the phono cartridge to be used. Before setting the mm/mc switch, the unit must be disconnected from the power supplyobtained with the 20dB gain setting.k panelnt panton 7555c FRONT PANEL A REAR PANEL ARTConnecting the TurntableConnect the turntable signal lead to either the mm or mc input on the pa2.2 depending on the type of cartridge your using. Take care to connect the left and right channels correctly. The right channel is marked with red the left channel is market with white. The ground wire of the turntable lead should be connected to the ground screw.Connecting a Line InputYou can connect any standard line output component (cd player, tape deck, tuner, etc.) to the line in input . This will allow you to listen to a standard line signal through the pa2.2 or convert the analog line signal to a digital signal via the usb out for recording on a computer. To listen to the output of the line in the phono/line switch on the front panel must be switched to line.Connection to the AmplifierLocate the line out connectors on back of the pa2.2. You have a choice between variable or fixed output. The variable output will allow you to adjust the volume level of the output with the volume control on the front panel. Please note: the volume control also controls the volume of the headphone output.Connect the line out (fixed or variable) of the pa2.2 to a line input (i.e. AUX, CD, TUNER, etc.) on your amplifier. Take care to connect the left and right channels correctly. Make all connections while the phono box is disconnected from the power supply.*DO NOT CONNECT THE PA2.2 TO A PHONO INPUT.*Mains ConnectionThe pa2.2 is supplied with a high efficiency multi-region regulated power supply. It provides a stable output from any mains voltage from 100 – 240V. Connect the low voltage plug from the power supply to the dc 24V socket on the pa2.2 before connecting to the mains. You may need to snap on a different power plug adaptor for your country. Plug-in and enjoy.Connecting to a ComputerConnect to your Windows PC or Apple Mac computer via the usb out on back of the pa2.2. A usb-B (pa2.2 end) to usb-A (computer end) cable is required for this connection. Connect the pa2.2 to your computer when both products are powered on. Your computer will recognize the pa2.2 and download any necessary drivers.You can select the pa2.2 on a Windows PC under Start > Settings > Sound Apple Mac computer under System Preferences > Sound > InputFor recording to your computer with the pa2.2 we recommend the use of Audacity freeware. The Audacity recorder and audio editor for your computer can be downloaded and set-up at: .Help, FAQ, and Tutorials can also be found on their site.Front Panel Controlson/offUse this switch to power the unit on and off.stereo/monoSwitch between stereo or mono audio output. The sound of mono records is significantly improved by toggling this switch to mono.phase/invertSwitches the output signal between absolute polarity phase (0°) and reversed polarity invert (180°). The majority of recordings are in phase, but some are recorded inverted phase or out-of-phase. The music will sound more full and rich when matched to the correct phase.phono/lineSwitches the audio output between phono and line inputs.headphones¼’ output for headphones.volumeTurn to adjust the headphones and variable output volume level.TECHNICAL SPECIFICATIONS:•MM input impedance: 47 kohms+ 220 pF•MC input impedance: 100 ohms + 1 pF•Analog line-level input impedance: 47 kohms•MM gain at 1khz: 39 dB•MC gain at 1khz: 59 dB (20 dB gain selected) / 65 dB (26 dB gain selected)•MM input sensitivity for 316 mV output: 3.3 mV•MC input sensitivity for 316 mV output: 0.4 mV (20 dB gain selected) / 0.2 mV (26 dB gain selected)•MM signal-to-noise ratio unweighted (with cartridge connected): 70 dB•MC signal-to-noise ratio unweighted (with cartridge connected): 75 dB (20 dB gain) / 70 dB (26 dB gain)•Analog Line-level input Signal-to-noise ratio: 120 dB•MM Input overload level at 20Hz/1kHz/20kHz: 8/71/650 mV•MC Input overload level at 20Hz/1kHz/20kHz (20 dB gain selected): 0.95/48/450 mV •MC Input overload level at 20Hz/1kHz/20kHz (26 dB gain selected): 0.45/24/225 mV •MM Total Harmonic Distortion + Noise (10 mV in): <0.01%•MC Total Harmonic Distortion + Noise (1 mV in and 20 dB gain selected): <0.05% •MC Total Harmonic Distortion + Noise (1 mV in and 26 dB gain selected): <0.05% •Analogue line-level input total harmonic distortion + noise: <0.01%•RIAA curve accuracy: +/- 0.3 dB•MM Crosstalk: 65 dB•MC Crosstalk: 65 dB (20 dB gain) / 60 dB (26 dB gain)•Line-level input crosstalk: 63 dB•Fixed line-level output impedance: 270 ohms•Variable line-level output impedance: 270 ohms•Headphone stage output impedance: 2 ohms•Headphone stage maximum output level: 6.8 V•Headphone stage total harmonic distortion + noise: <0.02%•USB output: maximum 24 bit linear PCM•USB output sampling frequency: maximum 96 kHz•Power Supply Rejection Ratio: 80 dB•Power supply: external 24VDC with multi-region plug adaptors•Power consumption without signal: 2.9 W•Unit dimensions (W x H x D): 6.3 x 2.0 x 6.73 in. (159 x 51 x 171 mm)•Unit weight: 2lbs. (900g)Input Connections: 3 pairs of RCA sockets (left/right) 1 x MM, 1 x MC, 1 x LineOutput Connections: 2 pair of RCA sockets (left/right) 1 x variable, 1x fixed1 x headphone output 32 - 600ΩA/D Converter: Wolfson WM 8786, Tenor TE7022L 24Bit Delta SigmaSampling Rates: 8, 16, 32, 44.1, 48, 96kHzUSB Output: USB 2.0,fully backward-compatible with USB 1.1Operating Systems: Windows: WinXP/Win7/Win8/Win10MAC: Mac OSX10.6.6 ~ OSX10.11music hall reserves the right to make technical modificationsTROUBLESHOOTINGMusic Hall phono preamplifiers are manufactured to the highest standards and undergo strict quality controls before leaving the factory. If, for some reason your phono preamplifier is not working properly, please take a few moments to review this list of potential causes.NO SIGNAL IN ONE OR BOTH CHANNELS:•The phono preamplifier is not connected to the mains power supply.•No mains at the socket.•No connection between the phono preamplifier and amplifier.•Correct input not selected at amplifier.•Poor contact or broken connection between the amplifier or turnable.•Amplifier not switched on.•Amplifier or speakers defective or muted.•Cartridge not wired into the head shell.•Loudspeakers not connected.•The correct input line or phono is not selected for the source that’s playing.•The turntable is not connected to the selected input mm or mc.LOUD HUM ON PHONO INPUT:•No earth connection from cartridge, tonearm, or audio cable to amplifier.•Ground loop.•Phono preamplifier too close to one or both speakers.DISTORTED SOUND FROM ONE OR BOTH CHANNELS:•MM/MC switch on pa2.2 incorrectly set.•Dust on the stylus.•Needle or cantilever damaged..SERVICEShould you encounter a problem that you cannot solve, please contact your Music Hall dealer. Never return a phono preamplifier without authorization and without safely disconnecting it and correctly packing it in the original packaging. Repairs will only be made under warranty if the unit is returned correctly packaged in its original box.WARRANTYThis entitles you to have the Music Hall pa2.2 repaired free of charge, at our discretion, for one year after the date of purchase, at any authorized Music Hall service center, provided the unit was purchased from an authorized dealer. Your original sales receipt is proof of purchase date. Music Hall takes no responsibility for defects arising from accident, misuse, abuse, wear and tear, neglect or unauthorized repair and/or adjustment. Music Hall cannot accept responsibilityfor damage or loss that occurs during transit. The warranty does not cover transportation costs.CLAIMS UNDER WARRANTYThe pa2.2 should be packed in the original packing and returned to the dealer from whom it was purchased, or, upon authorization, to a Music Hall service center. It should be sent by a reputable carrier, carriage prepaid. Do not send the phono preamplifier via USPS (United States Postal Service). Since no responsibility will be accepted for a unit in transit to the dealer, customer, or authorized service agent, customers are advised to insure against loss, damage, or theft.FOR FURTHER INFORMATION CONTACT:Music Hall108 Station RoadGreat Neck, NY 11023Tel: 516-487-3663Fax: 516-773-3891。
