® INSTRUCTIONS DAC-3MKII DIGITAL TO ANALOG CONVERTER DAC-3MKII DIGITAL TO ANALOG CONVERTER COPY RIGHT The copyright is in procession of CHENGDU XINDAK ELECTRONIC (XINDAK). Without permission in written from Xindak, anyone can not copy or spread any content in this manual in any form. TRADEMARK: All the trademark and names which are mentioned in this manual are in procession of Xindak. NOTICE Please do not tear any sticker on this appliance. Otherwise, it will influence the cognizance on production date. Since the swift development on technology, there may be some outdated description which is not applicable any more, please understand. Our company does not assure that there will be no updating version on this manual when there is no mistake or neglect. If there is any change on the manual, there will be no notice. DAC-3MKII Chapter 1 Important Safety Instruction CAUTION ! Dangerous Voltage The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to presence of uninsulated "Dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. Important Instructions ! The exclamation point within an equilateral triangle is intended to alert the user to presence of important operating and maintenance (servicing) 1 DAC-3MKII Chapter 2 2.1 Before Use Please read all instructions and precautions carefully and completely before operating your DAC-3MKII Digital D/A Converter. 1.Read these instructions. 2.Keep these instructions. 3.Heed all warnings. 4.Follow all instructions. 5. Do not use this apparatus near water. 6. Clean only with dry cloth. 7. Always keep this unit out of the reach of children. 8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus ( including amplifiers) that produce heat. 9. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the apparatus. 10. Unplug this apparatus during lightning storms or when unused for a long time. 11. Always disconnect your entire system from the AC mains before connecting or disconnecting any cable, or when cleaning any component. 12. This product must be terminated with a three conductor AC mains power cord which includes an earth ground connection, to prevent shock hazard, all three connections must always be used. 13. AC extension cords are not recommended for use with this product. 14. Never use flammable or combustible chemicals for cleaning audio components. 15. Never operate this product with any cover removed. 16. Never pour or spill liquids directly onto this unit. 17. Never block air flow through ventilation slots or heat sinks. 18.Never by pass any fuse. 19. Never replace any fuse with a value or type other than those specified. 20. Never attempt to repair this product, if a problem occurs, contact your dealer. 21. Never expose this product to extremely high or low temperatures. 22. Never operate this product in an explosive atmosphere. Notice 2.2 Check Accessory Unpack your DAC-3MKII products and keep all packing materials for future transport or service, locate and remove all accessory items from the accessory box within the controller shipping carton. Accessories Included: 1. AC power cord × 1 2. Optical fiber 3. Users' manual (This manual) 2 DAC-3MKII Chapter 3 3.1 Product Features Dear user, thank you for purchasing our DAC-3MKII Digital D/A Converter. This is a specially-designed model for the audiophiles who have high requirements on the sound-reproduction ability. As a 24Bit/96KHz high quality stereo Digital/Analog Audio Converter, it has both transistor and tube outputs, extremely suitable for the owners of VCD, DVD and CD player as well as computer owners to upgrade their current audio system. Multi-Analog Output ports The most select OPA for the analog filter and pure direct current amplifying design. The most select OPA for transistor analog output amplifying and the pure current amplifying design makes this unit have Introduction excellent music reproduction ability. The JJ E88CC tube for the analog output amplifying to achieve exquisite and mellow sound. There are three output ports available: signal-terminal tube analog RCA output port, OPA analog RCA output port and OPA balanced output port to afford various chooses for the users. The decoding circuit We adopted the latest digital technology, making use of the Delta digital interface which was developed independently by Xindak to upgrade the signal from 16Bit/44.1KHz to 24bit/96KHz and then accomplish 24Bit/96KHz decoding. Multi-linear power supply circuits We adopted audiophile-level linear power supply circuit. The independent voltage regulating and filtering for each power supply improve the sound quality greatly and make the sound more exquisite and transparent. The two custom-made high quality annular power transformers and independent power supply system on digital and analog parts could greatly reduce the mutual interferences and make the sound purer. High quality Technics structure design. We use the advanced CAD technology, Two-sided hole-drilled glass and fiber plate which has excellent high-frequency characteristics and many grounding wires for shielding to reduce various disturbances and improve the Signal to Noise Ratio. 3 DAC-3MKII Chapter 3 3.2 Block Diagram Introduction U11 DIGITAL TO ANALOG CONVERTER 3.3 Front panel Digital to Analogue Converter DAC-3MK 1 2 3 4 1 Power Button: Press this button, this unit will be switched on. Press it again, the power supply will be cut off. 2 Power Indicator: This indicator will be light when this unit is switched on. 3 Sampling Frequency indicator: The 96KHz indicator will be light while working. 4 Digital Signal locked indicator: This indicator will be light when the steady digital signal are received. 4 DAC-3MKII Chapter 3 3.4 Rear Panel Introduction 1 2 3 4 5 6 7 8 1 Right Balanced Audio Output Terminal Output the balanced audio signal (analog stereo)amplified by transistor to the input port on the amplifier. 2 Audio Output Terminal Output the analog stereo audio signal amplified by tube to the input port on the amplifier. 3 Audio Output Terminal Output the analog stereo audio signal amplified by transistor to the input port on the amplifier. 4 Left Balanced Audio Output Terminal Output the balanced audio signal (analog stereo)amplified by transistor to the input port on the amplifier 5 Digital Optical Input Terminal It is used to input the digital audio signal. You could input the digital audio signal of the CD, VCD, DVD or the computer to this unit by Optics cable. 6 Input Selection switch Select the optical and coaxial digital signal input. 7 Digital Coaxial Input Terminal It is used to input the digital audio signal. You could input the digital audio signal of the CD, VCD, DVD or the computer to this unit by 75Ohm coaxial cord. 8 AC Input Socket Connect the power cord to the AC inlet. 5 DAC-3MKII Chapter 4 4.1 Dimensions Specification 430mm Digital to Analogue Converter DAC-3MK 1 Volume Power Selector 20mm 6 288mm 76mm DAC-3MKII Chapter 4 4.2 Specification Specification System: Temperature: Humidity Power specifications Power consumption Frequency range Dynamic range Harmonic distortion+Noise(THD+N) Signal-to-Noise Ratio Stopband attenuation Pass band gain inequality Digital coaxial input Digital coaxial input impedance Channel gain inequality Output voltage Dimensions(WHD) Stereo audio digital to analog converter +5°C~+35°C 5%~85% Specified on rear panel decal max. 25W 20Hz-20KHz, 0.5dB 113dB -101dB 112dB -120dB 0.00001dB 0.5Vp-p 75 <0.05dB 2V(RMS,0dB) 430mmx76mmx288mm NOTE Specification and design subject to change without notice for improvements. 7 No.126, Section 2, East 1 Round Chengdu, Sichuan, China P.C. 610051 You can find your nearest authorized distributor and more product information on our website: www.xindak.com XD3.834.046sms ...