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Moon by Simaudio 680D


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The 680D is the prodigal little brother of the 780D, and it is the best buddy of the 600i v2. Together, they form a great pair to recreate the best sound for your favourite music.

MiND 2 (MOON intelligent Network Device)is a fabulous way of streaming and listening to your music. The 680D is designed to deliver an outstanding high-resolution streaming experience through music services such as Tidal Masters, Qobuz Sublime+ and Deezer Hi-Fi. The DAC architecture supports PCM (up to 32-bit/384kHz), DSD (up to DSD256) and is MQA certified.

Design features


  • Roon Ready device
  • DSD and MQA decoding from all digital inputs
  • Tidal Masters, Deezer Hi-Fi and Qobuz Sublime+ Music Services
  • Multi-room synchronized playback
  • 9 digital inputs : USB, AES/EBU, SPDIF, Optical, Ethernet, Wi-Fi and aptXTM audio for Bluetooth®
  • Power supply using new MOON Hybrid Power (MHP) for exceptionally stable, ultra low noise DC output
  • 12 stages of DC voltage regulation which includes 2 stages of M-LoVo (MOON Low Voltage Regulation) and 4 stages of i2DCf (Independant Inductive DC Filtering)
  • On-board programmable software for customization of the end-user interface




  • Frequency response (full range)2Hz - 100kHz +0/-3dB
  • THD @ 1kHz, 0dBFS (A-weighted)0.0005 %
  • Intermodulation distortion0.0003 %
  • Dynamic Range123 dB
  • Signal-to-noise Ratio123 dB @ full output 
  • Channel Separation120 dB
  • Intrinsic Jitter1 pico seconds RMS
  • Analog Output @ 0dBFS2.0 V
  • Analog output impedance100 Ω
  • PCM Bit-depth range16 - 32 bits
  • PCM sampling frequency rates 44.1 - 384 kHz 
  • DSD sample rates DSD64, DSD128 & DSD256
  • Shipping weight38 lb / 18 kg
  • Dimensions (width x height x depth)18.75 x 4.0 x 16.8 in