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HiFiMAN Balanced Amplifier Card
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HiFiMAN Balanced Amplifier Card

£182.50 Exc. VAT |  


Manufacturer:  HiFiMAN

HiFiMAN Balanced Amplifier Card

The Balanced Amplifier Module was designed with some of the most expensive and high quality parts on the market today. It uses (4) OPA627 OP-AMPS and (4) OPA634 buffers. By using these high quality chips, the listening experience produced by the  for HM901s/901/650/802 is second to none. 

This design will work in balanced mode for earphones/headphones with a 3.5mm TRRS or in standard mode for earphones/headphones with a 3.5mm standard jack. This powerful amplifier module will drive some of the most demanding headphones on the market.


  • Power supply voltage:±8.2v 
  • Power supply current:±20ma
  • Maximum balanced output (30R load) Low Gain/High Gain: 2.32v(179mw)/3.91v(477mw)
  • S/N: 112+/-1dB
  • Frequency response: 20hz-20Khz(-1dB) 
  • Maximum Normal output (30R load) Low Gain/High Gain: 1.45v(70mw)/2.5v(200mw)
  • S/N:  109+/-3dB
  • Frequency response:    20hz-20Khz(-1dB)
  • Output impedance:  1 Ohm

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