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Pass Labs HPA-1c Headphone Amplifier Introduced

29.07.2025 05:18 | ~1 minute read

The new Pass Labs HPA-1c headphone amplifier is introduced. As you can see from the model index, the new product is based on the previously released HPA-1 - and offers accurate volume control, wide bandwidth and a direct coupled MOSFET output stage.

Pass Labs HPA-1c
Pass Labs HPA-1c. Image source - (c) Pass Labs

The HPA-1c low feedback wide bandwidth discreet design can reach up to 2 watts of power at 30 ohms load.

Pass Labs HPA-1c
Pass Labs HPA-1c. Image source - (c) Pass Labs

Powerful class A amplifier stage be able to drive most complex low impedance planar headphones with impedance of 15 ohms to 600 ohms. The preamplifier section is also on board. 

 

Pass Labs HPA-1c
Pass Labs HPA-1c. Image source - (c) Pass Labs

Full specs coming soon, the retail price of Pass Labs HPA-1c suggested is expected to be $4,000.

Specifications

This product is in the Hi-Fi and High End Electronics and Acoustics database

Headphones amplifiers — Pass Labs HPA-1c

  • Model name

    HPA-1c

  • Maximum Power, 32 Ohms (mW RMS per channel)

    N/A

  • Maximum Power, 50 Ohms (mW RMS per channel)

    N/A

  • Maximum Power, 300 Ohms (mW RMS per channel)

    200

  • Maximum Power, 600 Ohms (mW RMS per channel)

    N/A

  • Frequency response low +/- 3dB (Hz)

    10

  • Frequency response high +/- 3dB (Hz)

    100000

  • Gain (dBu)

    8

  • THD (% at 1V RMS, 300 ohms)

    N/A

  • Signal to Noise Ratio (dB)

    0.05

  • IMD (%, CCIR, 300 Ohms)

    N/A

  • Crosstalk (dB, 20Hz-20KHz, 300 Ohms)

    N/A

  • Output Impedance (Ohms)

    2

  • Dimensions (mm)

    N/A

  • Weight (kg)

    N/A

  • Official link

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