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.
|Frequency Response 10 Hz – 100 kHz||-1 dB|
|Output Power into 20 Ω||3,500 mW|
|THD + Noise||<0.005% at 1 V Out|
|Output Power into 300 Ω||200 mW|
|Input Impedance||50 kΩ|
|Output Impedance||<2 Ω|
|Power Consumption||23 Watts|
|Dimensions (W x H x D)||280 x 102 x 343 mm (11" x 4" x 13.5")|
|Weight||6.4 kg (14 lb)|
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