Passlabs HPA-1 Headphone Amplifier

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  • Regular price $5,995.00

The HPA-1 headphone amplifier was designed ground-up to become what we believe is one of the very best sounding headphone amplifiers available today. With low feedback, wide bandwidth and a direct coupled MOSFET output stage, this musical instrument drives even the most difficult headphone loads with ease, power and grace. The HPA-1 also functions as a line-level preamplifier that sonically rivals much higher-priced competition. The measured performance is superb and the sound even better.

Gain (dB) -ξ8 dB
Power Consumption (W) -ξ6
Output Power into 20 ohms -ξ3500 mW
Output Power into 300 ohms -ξ200 mW
Frequency Response 10hz -100kξ-1 dB
THD + Noise -ξ< 0.005 at 1V out
Input Impedance - 50K Ohm
Output Impedance -ξ< 2 ohms