XINDAK DAC-3MKII User manual

DIGITAL TO ANALOG CONVERTER
DAC-3MKII
INSTRUCTIONS
®

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Since the swift development on technology, there may be some outdated description which is not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.

Important Safety Instruction
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.
Dangerous Voltage
The exclamation point within an equilateral triangle is intended to alert the
user to presence of important operating and maintenance (servicing)
Important Instructions
!
DAC-3MKII
Chapter 1
1
!
CAUTION

Chapter 2 Notice
2.1 Before Use
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:
Please read all instructions and precautions carefully and completely before operating your DAC-3MKII
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.
Digital D/A Converter.
1. AC power cord × 1 2. Optical fiber 3. Users’ manual (This manual)
2.2 Check Accessory
DAC-3MKII
2

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
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.
DAC-3MKII
3.1 Product Features
Introduction
Chapter 3
3

DAC-3MKII
1Power Button:
Press this button, this unit will be switched on.
Press it again, the power supply will be cut off.
2Power Indicator:
This indicator will be light when this unit is switched on.
3Sampling Frequency indicator:
The 96KHz indicator will be light while working.
4Digital Signal locked indicator:
This indicator will be light when the steady digital signal
are received.
3.2 Block Diagram
Introduction
Chapter 3
Digital to Analogue Converter DAC-3MKⅡ
12
3
4
3.3 Front panel
4
U
DIGITAL
TO
ANALOG
CONVERTER
11

DAC-3MKII
3.4 Rear Panel
Introduction
Chapter 3
1
2
3
4
5
6
7
Right Balanced Audio Output Terminal
Output the balanced audio signal (analog stereo)amplified by transistor to the input port on the amplifier.
Audio Output Terminal
Output the analog stereo audio signal amplified by tube to the input port on the amplifier.
Audio Output Terminal
Output the analog stereo audio signal amplified by transistor to the input port on the amplifier.
Left Balanced Audio Output Terminal
Output the balanced audio signal (analog stereo)amplified by transistor to the input port on the amplifier
Digital Optical Input Terminal
I
Input Selection switch
Select the optical and coaxial digital signal input.
Digital Coaxial Input Terminal
75Ohm coaxial cord
AC Input Socket
Connect the power cord to the AC inlet.
t 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.
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 .
1 2 34567 8
8
5

Specification
Chapter 4
4.1 Dimensions
DAC-3MKII
SelectorPower
Volume
1
76mm
430mm
20mm
Digital to Analogue Converter DAC-3MKⅡ
288mm
6

Specification
System:
Temperature: +5°C~+35°
Humidity 5%~85%
Power specifications Specified on rear panel decal
Power consumption max. 25W
Frequency range 20Hz-20KHz, 0.5dB
Dynamic range 113dB
Harmonic distortion+Noise(THD+N) -101dB
Signal-to-Noise Ratio 112dB
Stopband attenuation -120dB
Pass band gain inequality 0.00001dB
Digital coaxial input 0.5Vp-p
Digital coaxial input impedance 75Ω
Channel gain inequality <0.05dB
Output voltage 2V(RMS,0dB)
Dimensions(WΧHΧD) 430mmx76mmx288mm
NOTE
Specification and design subject to change without notice for improvements.
Stereo audio digital to analog converter
C
Chapter 4
4.2 Specification
DAC-3MKII
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