Xindak DAC-8 User Manual

®

INSTRUCTIONS

DIGITAL TO ANALOG CONVERTOR

DAC-8

DIGITAL TO ANALOG CONVERTOR

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 Since the swift development on technology, there may be some outdated description which is not applicable any more, please understand.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-8

Chapter 1

CAUTION

Important Safety Instruction

!

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-8

Chapter 2

Notice

2.1 Before Use

Please read all instructions and precautions carefully and completely before operating your DAC-8 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.

2.2 Check Accessory

Unpack your DAC-8 products and keep all packing materials for future transport or service, locate and remove all accessory items from the accessory box within the shipping carton.

Accessories Included:

POWER

MUTE

COAXIAL

MODE

OPTICAL

DIMMER

VOLUME

USB

+

-

REMOTE CONTROLLER

1. AC power cord × 1

2. Optical fiber× 1

3. Remote Controller × 1

3. Users’ manual (This manual)

2

DAC-8

Chapter 2

2.4 For Using the Remote Controller

Install Batteries

Before using the remote controller for the first time, you need install the new battery in the remote controller.

Process

1. Use the tool to remove the rear cover of the remote control unit.

2. Install the 2 batteries (AAA)

with correct +/-

3. Reinstall the rear cover of the remote control unit.

Battery Replacement

1. Use the tool remove the rear cover of the remote control unit.

2. Take out the old batteries from remote control unit.

. Install the 2 batteries (AAA) polarity.

3 with correct +/-

4. Reinstall the rear cover of the remote control unit.

Caution

1. Do not use new and old batteries simultaneously.

2. Batteries with similar shapes may have different rated voltage, be sure to use the correct batteries.

3. Remove batteries from the remote control unit if it will not be used for a long period of time.

polarity.

Precaution

E

T

R

U

M OWE P

E D

L

O

IA

M X AC

O

E

UM OL V

EDIMMR

A

IC

PT L

O

+

SB U

-

R

LR

O LE

OTE CONTR

M

E

AAA Batteries

Install Batteries

Battery Reclaim

Please send the waste batteries to local battery reclaim center. DO NOT discard the waste batteries discretionarily, in order to avoid environment pollution.

IR Sensoer

Using Remote Controller

If you use the remote control unit to control the amplifier:

1.The remote control range is approximately 5 meters.

2.Pointing the remote control on an angle to the receiver, will shorten the useful distance of the remote control.

Incorrect use of batteries

!!

The lower temperature, the

30°30°

3

°0

POWER

MUTE

COAXIAL

MODE

OPTICAL

DIMMER

VOLUME

USB

+

-

REMOTE CONTROLLER

may cause corrosion or damage.

n shorter battery life.

3

DAC-8

Chapter 3

Introduction

3.1 Product Features

Dear user, thank you for purchasing our DAC-8 Digital D/A Convertor. This is a specially-designed model for the

audiophiles who have high requirements on the sound-reproduction ability. As a high quality stereo Digital/Analog Audio

Convertor of both 24Bit/96KHz and 24Bit/192KHz, it’s extremely suitable for the owners of VCD, DVD and CD player as

well as computer owners to upgrade their current audio system.

In order to improve the sound quality, Xindak engineers have also used patent technology on avoiding dynamic invalidation

of capacitors, which could decrease the distortion on the High especially. It can upgrade the digital signal recorded in PCM

format of common CD player to 24Bit/192Khz to achieve higher processing precision and highly improve the dynamics and

treble extension, making the sound more mellow with richer soundstages.

It adopts AD1852 24Bit/192KHz of AD company to convert digital signal to analog signal. The analog filtering circuit adopts

low-noise resistance and OPA2064 of BB company. The double annular transformers and six independent stable power

supplies can afford abundant and pure power to the circuits and ensure their most stable and best working status.

Additionally, it also corrects the Jetter time base errors at the same time. The 6922EH(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.

3.2 Block Diagram

LL

GG

NN

USB

JACK

DIGOTAL

INPUT

USB

D/A CONVERTER

U3,U5 ,XT1 MASTER CLOCKU3,U5 ,XT1 MASTER CLOCK

Tr3

power

TRANFORMER

+5VD+5VD

DIGITAL

ANALOG

CONVERTER

POWER

RELAY

TO

MAIN

Microcontroller

C-BIAS TECHC-BIAS TECH

avoiding

dynamic

invalida tion

of

capacito rs

DIGITAL

POWER

ANALOGUE

POWER

ANALOGUE

POWER

ANALOGUE

POWER

DISPLAYDISPLAY

+5VD+5VD

+6.3V+6.3V

+5VA+5VA

+12V+12V

-12V-12V

+100V+100V

4

DAC-8

Chapter 3

3.3 Front panel

IR SensoerIR Sensoer

3 4

21 9

5 7

6

8

Introduction

10

Indicator for warm-up:

1

It needs 30 seconds for system warm-up after power on. During this period, the window will display the rest warm-up time needed.

Sleep indicator:

2

Press the sleep button on panel or power button on remote control, and then the D/A converter will enter

"sleep" mode this indicator will be light.

Receiver error indicator:

3

When there is serial data which is no PCM format inputted from optical fiber or coaxial input, or plug and unplug the digital cable in wrong way, the product will stop work and enter production state. The display screen will display "error".

Sleep button:

4

Press this button to make the D/A converter enter "sleep" mode.

Mode button:

5

Press this button, can set the work mode as 192kHz/24bit or 96kHz/24bit. The display screen will display corresponding work mode.When the input

is USB, this button does not work.

Input Selection Button:

6

Press this button can select between "COA” coaxial input, "Opt” optical fiber input and PC USB digital input. The display screen will display the corresponding input way.

Vol- button:

7

Press this button can reduce analogy output volume. The display screen will display current volume level. Min is 0. When the input is USB, this button does not work.

8

Vol+ button:

Press this button can increase the analog volume, and the display screen will display current volume level, max is 60.When the input is USB, this button does not work.

9

Sensor window for remote control

The remote control receiving window will receive the controlling signal produced by the remote controller.

10

Digital Signal locked indicator:

This indicator will be light when the steady digital signal are received. When the input is USB, this button

does not work.

5

DAC-8

Chapter 3

3.4 Rear Panel

1 2

Introduction

1

3

4

5

6

7

8 9

10

Right Balanced Audio Output Terminal

1

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

USB Input Socket

Please connect this port to the computer by USB connection cable. (USB connection cable is not attached).

Digital Optical Input Terminal

6

t is used to input the digital audio signal. You could input the digital audio signal of the CD, VCD, DVD or the

I

computer to this unit by Optics cable.

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 .

8

Power ON/OFF

Press this button turn on or turn off the power.

9

Fuse Socket

Use to install the fuse.

AC Input Socket

10

75Ohm coaxial cord

Connect the power cord to the AC inlet.

6

DAC-8

Chapter 3

3.5 Remote Controller

POWER

1

2

3

4

MUTE

COAXIAL

MODE

OPTICAL

DIMMER

USB

REMOTE CONTROLLER

Precaution

1. Power Button:

Press this button to make the D/A converter enter "sleep” mode.

5

6

VOLUME

+

-

7

8

2. COAXIAL Button:

Press this button can select "COA” coaxial input.

3.OPTICAL Button:

Press this button can select "Opt” optical fiber input .

4.USB Button:

Press this button can select PC USB digital input.

5. MUTE Button:

Press this button, for turn on or turn down the output volume. When the product is in mute state, the display screen will display "VOL:---”corresponding function.

6. MODE Button:

Press this button, can set the work mode as 192kHz/24bit or 96kHz/24bit. The display screen will display corresponding work mode.When the input is USB, this button does not work.

7.DIMMER Button:

(not available for this unit).

8. Volume Control Button:

Press ＂ Vol+＂ button can reduce analogy output volume. The display screen will display current volume level. Min is

0. When the input is USB, this button does not work. Press ＂Vol-＂ button can increase the analog volume, and the display screen will display current volume level, max is

60.When the input is USB, this button does not work.

7

DAC-8

Chapter 4

4.2 Specification

System: Stereo audio digital to analog converter

Temperature: +5°C~+35°C

Humidity 5%~85%

Power Specifications Specified on rear panel decal

Power Consumption max. 25W

Frequency Range 20Hz-20KHz, 0.5dB

Dynamic Range 114dB

100dB (USB input)

THD +N 0.0008%( )

0.002% (USB input)

Signal-To-Noise Ratio 114dB

105dB (USB input)

Interchannel Crosstalk

Pass Band GainInequality 0.00001dB

Digital Coaxial Input 0.5Vp-p

Digital Coaxial Input Impedance 75Ω

Channel Gain Inequality <0.05dB

Output Voltage 2V(RMS,0dB)

0.002% (USB input)

Dimensions(WΧHΧD) 430mmx104mmx340mm

Specification

With A-Weighted

-120dB

NOTE

Specification and design subject to change without notice for improvements.

8

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

XD3.834.098sms