Ubolon DAC651A User manual

深圳市优视联科技有限公司 www.ubolon.com
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USER MANUAL
5.1ch Digital Audio Decoder
Model No1: DAC651A（no USB）
Model No2: DAC651B（with USB）
REMARK
Manufacturer does not make any commitment to update the information contained herein.

深圳市优视联科技有限公司 www.ubolon.com
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FEATURES
1: Support two Optical input,one Coaxial input,one AUX input,one USB 2.0 input（only
DAC651A）. You can switch different signal sources randomy by Button.
2: Support one 5.1ch analog audio output.DAC651A output by RCA connector,DAC651B
output by 3.5mm phone connector.
3: Audio farmat support FLAC、APE、DTS、AC3、WAV、HDCD、DSD、AAC、WMV、
MP3、M4A etc.
4: Support 5.1ch/2.0ch output mode selection,FL/FR active when 2.0ch output mode.
5: Support Button switch input source ,and turn on corresponding LED.
6: Surpport hardware decoding (5.1 channel separation ) and software decoding(2.0ch
to 5.1ch)
7: Support USB player and Input source selection power off memory function.
8: The use of DC-5V/1A external power adapter power supply,
SPECIFICATIONS
Supported format……flac、ape、ac3、dts、wav、hdcd、dsd、aac、wmv、mp3 etc
DSP sample frequency range…………………………………………………….. 24~192 KHz
DSP Bit rate range…………………………………………………………………….16~24 Bit
Digital input level……………………………………………………………….0.1~1Volts p-p
Analog output level(1kHz@0dB)...................................................................... ≥1.5V RMS
SNR @ 0dB(CCIR/ARM)…………………………………………………………………≥90dB
Frequency response……………………………………………………………….20Hz~20KHz
Max working current ……………………………………………….……….…….….…..400mA
Power adapter format Input …….….…….. .. .. ..….AC100V~240V 50HZ/60Hz, DC-5V/1A
Operating Temperature range ……..……………………………………………. -10 to +60℃
Storage Temperature range………………………………………………………. -20 to +60℃
Operating Humidity range …………….….……….……….10 to 90%RH (No Condensation)
Storage Humidity range………………………….……………5 to 95%RH (No Condensation)
Product Dimension (L x W x H) ………………….………………………….. 108x88x27 (mm)
Product Weight …….……….………………………………………….……………………. 160g

深圳市优视联科技有限公司 www.ubolon.com
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Panel Definition
11
DC-5V
OPT1 OPT2
++
DC-5V
COX AUX 5.1CH INPUT
POWER OPT1 OPT2 COX 5.1CH
18 111
9111A 111B 111C
1111 1112 1113 1114 1115 1116 1117
FIG.1.0 DAC651A/B Front panel view
1：DC-5V Power input 2：Optical input 1
3：Optical input 2 4：Coxial input
5：AUX input 6：5.1ch/2.0ch switch button
7：Input source switch button 8：LED of Power
9：LED of Optical input 1 mode A：LED of Optical input 2 mode
B：LED of Coxial mode C：LED of 5.1ch /2.0ch mode
++
FL FR SL SR CEN SW
1111 1112 1113 1114 1115 1116
FIG.1.2 DAC651A Rear panel view
1：Front Left channel(FL)2：Front Right channel(FR)
3：Surround Left channel(SL) 4：Surrond Right channel(SR)
5：Center channel(CEN) 6：Subwoofer channel(SW)

深圳市优视联科技有限公司 www.ubolon.com
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++
FL/FR SL/SR CEN/SW
USB 2.0
1111 1112 1113 1114
FIG.1.3 DAC651A Rear panel view
1：Front Left/Right channel(FL/FR) 2：Surrond Left/Right channel(SL/SR)
3：Center/ Subwoofer channel(CEN/SW) 4：USB 2.0 port
Package Contents
1、DAC651 Audio Decoder x1 2、DC-5V/1A power adapter x1
3、Digital optical fiber cable x1 4、User manual x1
1
DTS/AC3 5.1ch Digital Audio System
HDMI to HDMI+5.1ch Audio S/PDIF Audio Decoder USB Muti-Media Player
2 3 4
Opration Guide
1、Connecting all signal cable before power on,You will hear the sound of starting about 15s,and turn on
pre-setting LED；
2、Button operating functions:
INPUT: Short Press for switching input source, the order is : OPT1–> OPT2 -> COX -> AUX ;
Long Press(at least 3s) for entering USB Playing mode, now the LED of OPT1/OPT2/COX
will in a state of water lights. Long Press again will exit USB Playing mode.
In USB playing mode,the 5.1CH button will be “Previous song” function, and the INPUT
button will be “NEXT song”function.
5.1CH:Switching to 5.1ch or 2.0ch mode，the LED of 5.1ch will ON in 5.1ch mode and will OFF in

5
2.0ch mode
3、The LED definition:
POWER: red,always ON when power normal.
OPT1:Blue,it will ON when select “OPT1”mode,and will FLASH when source inputed.
OPT2: Blue, it will ON when select “OPT2”mode,and will FLASH when source inputed.
COX: Blue, it will ON when select “COX”mode,and will FLASH when source inputed.
5.1CH: Blue, it will ON when select “5.1CH”mode, and will OFF when select “2.0CH”mode.
NOTEs: The LED of OPT1/OPT2/COX will all OFF when select “AUX”mode.
The LED of OPT1/OPT2/COX will in a state of water lights when select “USB”mode.
4、The difference of DAC651A/DAC651B:
DAC651A: No USB input mode，5.1ch output interface is RCA;
DAC651B: With USB input mode，5.1ch output interface is 3.5mm Phone.
Warranty card
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