Fosi Audio ZD3 DAC upgrade with Burson Discrete V7 Classic opamp

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Post Info

The Fosi Audio ZD3 paired with the Burson V7 op-amp delivers a truly wonderful and impressive experience. The upgrade brings a noticeable improvement in clarity, refinement, and overall musicality, elevating the performance well beyond expectations and making the combination genuinely enjoyable to listen to.

The System

Listening with

Fosi Audio ZD3 · DAC: balanced desktop DAC / preamp
  • Output voltage: RCA 2.5 V · XLR 5 V
  • Inputs: USB; HDMI ARC; coaxial; optical; Bluetooth
  • Outputs: XLR; RCA
  • DAC / chipset: XMOS XU316 + ESS ES9039Q2M + QCC3031 + LME49720
  • Other: SNR >=126 dB; THD+N <0.00008%; dynamic range >=123 dB; noise floor <=2 µV; USB PCM 32-bit/768 kHz and DSD512; optical/coaxial PCM 24-bit/192 kHz; Bluetooth PCM 24-bit/48 kHz. The product page also prints “THD: >=120 dB”, which was not copied.

[1]

Aiyima T20
Aiyima A20

Burson

Burson V7 Classic Opamp

Also in the system

Sparkos SS3602

Specs from manufacturer data unless a source below says otherwise. “calc.” values are worked out from those figures (V = √(P × R); 110 dB SPL used as a loud reference level). Gear listed without specs is not in our spec library yet.

  1. Fosi Audio ZD3: fosiaudio.com