VMV D1se
  High resolution USB DAC
MQA working principle
  When the analogue sound is converted to a digital signal, time blurring  will occur, blurring transient signals over time. As a result, our ears cannot  tell where a single sound comes from, the comparison between recorded music and  “live performances” is unremarkable! MQA can eliminate this distortion and  create a true 3D sound field, which is different from any sound you have ever  heard.
Before using MQA
  Common digital audio filters will damage the time resolution. There will be  a “hum” before and after the transient.
After using MQA
  Compared with 24/192 recording, MQA reduces the number of vibrations before  and after by more than 10 times.
Encapsulate the sound
  Once the blur in the recording is removed, MQA will use what we call a “musical  origami” process, which cleverly makes this large resolution file easy to  manage and can be compatible with any service or playback device.
MQA Decoder
  This will expand the MQA file once to provide better sound quality than CD  quality. 
MQA Renderer
  Use the product with MQA renderer to complete the final deployment.  Renderer including USB DAC’s and some headphones and other portable products.
MQA Full Audio DAC
  Products with MQA full decoder can fully expand the file to provide the  best sound quality. Playing at this level, you will hear the original sound created  by the artist in the recording studio, with precise files and specific DAC  compensation and management.
High-end components just for sound quality
  The unit uses the high-end ES9038RO D/A chip from ESS. The SNR is as high  as 140dB, and the total harmonic distortion plus noise is -122dB. At the same  time it is 32-bit, eight-channel DAC chip, with high resolution and high  dynamic frequency response, D1 se achieves a low distortion rate of 0.00009%  (-121dB).
 With ES9311, ESS high-performance DAC dedicated power supply  chip ES9311, power supply noise is as low as 1uVrms, pushing the performance of  ES9038PRO to the limit.
  USB uses XMOS XU-216, Real 32bit USB solution, support Dop  and native DSDPCM up to 768kHz, DAD supports up to DSD512.
 The enthusiast-grade Japanese nichicon KG series filter  capacitors and low-noise power supply circuits make the sound even sweeter.
 The fever-grade sealed toroidal transformer, the advantage  of silence, lower leakage flux, small volume, the disadvantage is the high  price, the authentication complete.
  Bluetooth 5.0 and supports APT-X
 Support Bluetooth 5.0 and support aptX/AAC/SBC