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Mini Bluetooth APTX USB XMOS DAC DSD256 PCM384K Decoder Headphone Amplifier

This is our Douk Audio Studio December /2017 Latest design multi-function Mini DAC Wireless 4.0 Atpx +DAC+Headphone amplifier upgraded edition.The most high-Cost-effective mini Bluetooth headphone amplifier DAC,which brings you professional sound
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  • Description
  • Reviews
  • USB Part using the XMOS XU208 
  • Headphone port upgraded to Foxconn Metal sealed socket
  • Op-amp can be pluged and removed  or changed 
  • Op-amp using double power supply ,dynamic and resolution beyond last edition 
  • Solved the Signal interference problem
  • Headphone part upagrded ,the power magnify 3 times than before (0.13w/32 ohm)

This sound card with USB connector and Bluetooth connector ,very convinent to PC/Notebook,super mini and portable design ,it can be powered by the power bank.

Using TI’S high-performance DSD1796 as the decoding chip (DSD Professional decoding chip, The lowest distortion is 0.0005%),

XMOS U208 chip as the USB part,with MCU control, automatically decoding DSD、PCM, automatically transfer indicator light (DSD 、PCM indicator)
 4 Set input decoding ,with coaxial, headphone, linear output. It can play PCM、DSD64、DSD128、(native DSD256 ) Format music ,Using the best quality England Bluetooth chip CSR8670 ,Support blutooth 4.0, support APTX ,It directly decoding CSR8670 coaxial digital signal greatly improve the sound quality .
Pls note that :it not with the phone function. The Bluetooth distance is 3-8meters,not support partition ,Blutooth mode also can play DSD


1.Using the best USB audio decoding plan--Xmos U208 Asynchronous transmission chip,Let the computer sound reach a HIFI Level

2.Using America TI Top-level DSD 1796 DAC chip.Decoding 384K PCM、DSD64、DSD128 format signal,enjoy the Master level audio

3.Built-in high-fidelity headphone ,Strong power source, low frequency response

4.USB Support OTG Android mobile 、Android TV box 、Apple computer linux don’t need the driver (need the external power and set the input mode as USB ),We recommend mobile install the APP “haibyMusic”to support DSD format

5.It is supportted by Windows system (Need install the driver)、Mac、Linux(don’t need install the driver )、portable modible

6.Add the Coaxial, Optical, Bluetooth decoding function it greatly improve the sound quality for the deivce like TV、 DVD、TV BOX、 Mobile

7.With Multi grade Precision ultra-low ripple regulator chip and hifi audio components

  • Power : USB Power (Please note:The voltage must be 5V, if over it the deivce will be burned)
  • Coaxial, Optical working current: 60mA
  • USB input working current: 200mA
  • Headphone power: 80MW / 16Ω
  • Audio output THD: 0.001%
  • Audio output amplitude: 1V RMS
  • Coaxial support: PCM44.1K-192K/24Bit
  • Optical support: PCM44.1K-192K/24Bit
  • USB support: PCM44.1K-384K/32Bit, DSD64-DSD256 (Automatic identification decoding) (Not support DXD) 
  • USB support system: OTG Andriod Mobile, Set Top Box, etc. and Apple PC, Linux, delphi system don't need the driver )
  • Size: 110*98*25mm (Not include the connector part) 
  • Weight: 300g

Package include:

  • 1× Audio DAC
  • 1× USB Cable
  • 1× Driver CD
Note: When DAC Only with Optical input (Opt), no matter the switch at Coaxial or optical place the signal is optical signal, Once plug the coaxial cable then you can select the matching decoding way.

Bluetooth setting:

1. Pls Put the selector switch at the “Bluetooth ”position,then the CNCT indicator will flash quickly

Using Mobilephone as example :enter Mobile “setting “-Bluetooth ,Click :search device ,then you will search out “Douk Audio” click “Douk Audio ”match the device with douk audio ,

After matching well the CNCT indicator will flash slowly

We recommend using the mobile with APTX function ,the sound quality it best

Precautions for use:

1. If the DAC only with Optical input signal ,no matter the selector switch at Coaxial or optical position it just the optical signal ,Once insert the coacial cable then have to select the matching input signal ,that not the device quality problem ,it is just the DAC Preferred signal mode issue.

2. DAC not support DXD format

3. USB Port to Mobile ,need add the external power supply

4. If the device has a fast forward and no sound problem ,that caused by the USB Contact or power supply ,just inert the cable again or change USB port is fine .

5. This device Line Out output signal is a little weak,so when connecting it to amplifier should adjust the volume higher

6. USB sound card can’t be identified,If the indicator not glow ,the problem caused by USB Poor contact or external power not enough,pls exclude the USB cable problem or power supply voltage is 5V

7. The device can’t be connected to the PC front USB port ,it easy cause the papapa noise 
8. Under Bluetooth mode the Effective linear distance is near 10 meter ,the best distance is within 5 meter (without the wall or obstacles )
9.If you find the Bluetooth can’t match,pls power off the device 1 minute later then power it on and match it again
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