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Moon by Simaudio 230HAD Headphone Amp


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The 230HAD Headphone Amplifier is more than capable of doing those tasks, whatever your needs may be. Based heavily on the reference 430HA headphone amp,the 230HAD features a DSD256/32-bit PCM capable Digital to-Analog converter (DAC) that can be used with virtually any digital source such as computer, satellite TV receiver or Blu-Ray player, and offering the same fidelity as your main music system.

Design features


  • Inputs include 1 single-ended on rear-mounted RCA’s and 1 single-ended on 1/8” jack located on the front panel.
  • Outputs include a ¼” TRS headphone jack, as well as both fixed and variable single-ended line-level RCA stereo pairs.
  • Fully asynchronous DAC with four (4) digital inputs (S/PDIF x 2, TosLink x 1 & USB x 1) allowing for use with virtually any digital source; Supports DSD64, DSD128 and DSD256 (USB input only); Supports PCM up to 24-bit/192kHz (all inputs) and 32-bit/384kHz (USB input only).
  • Pure analog amplifier using a transconductance circuit.
  • An oversized power supply using 1 toroidal transformer in conjunction with 8 stages of DC voltage regulation.




  • Output power per channel @ 600 / 300 / 50Ω100mW / 200mW / 1W
  • Headphone Impedance20 - 600Ω
  • Frequency Response (audible)20Hz - 20kHz ±0.1dB 
  • Frequency Response (full range)5Hz - 100kHz +0/-3dB
  • THD @ 1kHz, 0dBFS (A-weighted)0.005%
  • Intermodulation distortion0.005%
  • Signal-to-noise Ratio115dB
  • Crosstalk-80dB
  • Input / Output impedance22KΩ / 1.25Ω
  • Shipping weight6.2 lb / 2.8 kg
  • Dimensions (width x height x depth)7.0 x 3.0 x 11.0 in
  • 17.8 x 7.6 x 28.0 cm