Pass Labs HPA-1

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.

• Works with headphoneswith impedances of 15 ohms to 600 ohms
• Low feedback wide bandwidth discreet design.
• Class Adirect coupled Mosfet output stage* Custom low noise Torodial power transformerwith a Farady shield
• Discreet regulated power supply for audio circuits.

Specifikation:

• Gain (dB): 8 dB* Power Consumption (W): 23
• Output Power into 20 ohms: 3500 mW
• Output Power into 300 ohms: 200 mW
• Frequency Response 10hz -100k: -1 dB* THD + Noise: < 0.005 at 1V out
• Input Impedance: 50K Ohm
• Output Impedance: < 2 ohms
• Mått (BXHXD): 28 x 11 x 35 cm.
• Vikt: 6.3kg