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HIFI-BalanceAmpCard
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HIFIMAN - Balanced - Amplifier Card

HIFIMAN - Balanced - Amplifier Card

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 HM-901 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.

(For HM-901/802)

SPECIFICATIONS:

Adapted Models
        HM901s/901U/802U/650/901/802

Power Supply Voltage
        ±8.2v

Power Supply Current
        ±20 mA

Maximum Balanced Output (30R load)
        Low Gain-2.32v(179mw)

Maximum Balanced Output (30R load)
        High Gain-3.91v(477mw)

S/N
        112±1 dB

Frequency Response
        20Hz-20KHz(-1dB)

Maximum Normal Output (30R load)
        Low Gain-1.45v(70mw)

Maximum Normal Output (30R load)
        High Gain-2.5v(200mw)

S/N
        109+/-3dB

Frequency Response
        20Hz-20KHz(-1dB)

Output Impedance
        1 Ohm

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