Pass Labs
HPA-1c
The Pass Labs HPA-1c is a discrete, class A headphone amplifier that also functions as a line-level preamplifier. It uses an upgraded power supply, improved circuit-board grounding, and local regulation for the servo circuitry, with a specified approximately 10 dB improvement in overall noise performance. Specifications include 8 dB gain, 3,500 mW output into 20 ohms, 200 mW into 300 ohms, less than 2-ohm output impedance, 50 kΩ input impedance, and 23 W power consumption.
MSRP
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Specifications
- Gain
- 8 db
- Input impedance
- 50K Ohm
- Unit weight
- 14 lbs
- Out power into 300
- 200 mW Ω
- Power consumption
- 23 W
- Output power into 20
- 3500 mW Ω
- Unit dimension w x d x h
- 11 x 13.5 x 4"
- Frequency response 10hz 100k
- -1 dB
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