Musical Paradise MP-D1 XMOS AKM4399 Asynchronous USB DAC With 5670 Tube Output Buffer

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Musical Paradise MP-D1 XMOS AKM4399 asynchronous USB DAC with 5670 tube output buffer,The USB receiver is XMOS asynchronous chip,SPDIF digital reciver is DIR9001 and DAC chip is AKM4399 high performance DAC,Two 5670/6N3 tubes at output stage to add tube sound to the DAC.

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Musical Paradise MP-D1 XMOS AKM4399 Asynchronous USB DAC With 5670 Tube Output Buffer

The  Musical Paradise MP-D1 is a multi-functional DAC built with leading edge chipsets and vacuum tubes technologies. It accepts USB, S/PDIF and TosLink inputs. USB input is for use with a computer (Windows, Mac and Linux), the S/PDIF and TosLink inputs allow for interfacing with other source players such as a CD player, DVD player, etc.

The USB section is powered by the XMOS 500 MIPS, 8 threads, XS1-L1 processor. It is natively supported by Apple OSX version 10.6.4 and above, and Linux with 3.0 or above kernel - no driver install required. It also supports Windows XP/Vista/7/10 by installing a supplied driver. Since the USB input runs at asynchronous mode with multiple dedicated 1PPM precision temperature compensated master clocks, the jitter is virtually not an issue. USB supports up to 24bit/192khz bit perfect digital audio data. It can be used as an USB to coaxial convertor too.

The digital input section uses low jitter TI DIR-9001 receiver to support both S/PDIF and TosLink inputs up to 24bit/96khz. The flagship AKM AK4399 DAC is used in the DAC section. It is the best sounding AKM stereo DAC with 123dB dynamic range.

Power supply is the heart of a DAC. MP-D1 uses dual high quality EI power transformers with 6 separated windings. One is for the digital section, and another one for the analog output section.

Our goal is to achieve the most analog sound in the digital world. In order to meet this goal, the analog output section only employs "vacuum tubes". No cheap op-amp or transistors. Also, no global negative feedback loop. This special design provides very musical listening experience.


  • High performance XMOS 500 MIPS XS1-L1 processor
  • USB Audio 2.0 industrial standard
  • Asynchronous USB mode with multiple 1PPM TCXOs
  • Class A single ended; No global negative feedback loop
  • Tube analog output
  • Built with high grade genuine components.
    (US Military Vishay Dale resistors. Wima MKP 10, RIFA 450, Sanyo OSCON, Rubycon, Philips BC, Panasonic X-Pro and Nichicon capacitors.)
  • 24K gold plated input and output terminals.
  • Transformers are specially made with oxygen free copper wire and Japanese Z11/M6 silicon core.
  • Gold plated PCB.
  • Proven by many audiophiles. Excellent sound quality guaranteed.




Tubes (Default)

6N3 x 2


XMOS XS1-L1 500 MIPS, AKM4399, DIR-9001


Class-A Single Ended



Output impedance

1K - 250K

Frequency Response

20Hz - 20Khz


<0.1% (1Khz)



AC Input

100-120V / 220-240V 50-60Hz Worldwide Use




(W 24CM x L 30CM x H 10CM)


1 Year Limited (One month for tubes)

Tube Replacement Guide:

V1 V2

6N3, 2C51, 5670 and Western Electric 396A

Packing List

  • One Musical Paradise MP-D1 DAC digital to analog converter.

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