Questyle Audio CMA800i
Headphone amplifier & DAC

  • Sale
  • $ 2,499

The Questyle Audio CMA800i headphone amplifier section features Questyle’s patented "Current Mode Amplification" design used in their flagship headphone amplifier, the CMA800R. Questyle Audio CMA800i accepts the DSD bit-stream directly from your computer, bypassing your computer’s audio processing and digital volume control as well as the Questyle Audio CMA800i’s digital filters, to provide True DSD, the way it was meant to be heard, without requiring expensive difficult to install proprietary connectors.

The ultra-low 0.00026% distortion, ultra wide bandwidth, up to 850kHz (+0, -3dB), and super-current pure class A architecture enables the CMA800i’s amplification to be unparalleled among all-in-one & DAC headphone amp models.


  • A world-class DAC section
  • True DSD
  • IIR digital filter 
  • A separate preamp section
  • Headphone Amp Section
    • Gain: 11.8dB (3.9 times)
    • Max Output Power (Po): 180mW(7.5Vrms) @300Ω; 1W@32Ω
    • THD+N: 0.00026%@1kHz, Po=100mW,300Ω, 0.00050%@1kHz,Po=50mW,32Ω
    • SNR: 118 dB
    • Frequency: DC-200kHz(+0,-0.5 dB), DC-850kHz(+0,-3 dB)
    • Sensitivity: 2.2Vrms
    • Input: internal DAC output, or external RCA input, switchable
    • Output: dual 6.35 mm standard stereo jacks
  • DAC and Preamp Section
    • Input: SPDIF input and output, USB Type B input
    • SPDIF Input and Output: standard PCM 44.1-192k/16-24bit 
    • USB: PCM 44.1-192k/16-24bit and DSD source code following standard SACD format
    • PC OS to Match USB Input: Win XP, Vista, Win7, Win8 and MAC OS
    • Digital Filter:
      • PCM Mode: switchable IIR(MP) and FIR (LP)
      • True DSD Mode: no filter
    • USB supported Kernel Stream: WASAPI, ASIO, KS
    • Analog Output: balanced (XLR) and unbalanced (RCA)
    • Max Output Amplitude
      • XLR: 8.6Vrms
      • RCA: 4.3Vrms
    • THD+N: < 0.005% for both XLR and RCA
    • SNR: >107dB for both XLR and RCA
  • Connections
    • Analog Output: unbalanced RCA
    • Input (DAC/Preamp): SPDIF input and output
    • Input (Headphone Amp): internal DAC output, or external RCA input, switchable
    • Output (Headphone Amp): dual 6.35 mm standard stereo jacks
    • PC OS to Match USB Input (DAC / Preamp): Win XP, Vista, Win7, Win8; MAC OS USB(DAC/Preamp): Type B USB input
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