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Headphone Amplifier Pass Labs HPA-1 C Silver
Description
The Pass Labs HPA-1c is a reference-grade Class A headphone amplifier and line-level preamplifier engineered to deliver exceptional micro-detail, signal purity, and dynamic drive. Upgraded from the original HPA-1 design, it features an enhanced power supply, optimized circuit board grounding, local regulation for its servo circuitry, and a 10 dB improvement in overall noise performance for an exceptionally dark background. Capable of outputting 2 Watts into 32 Ohms with a low 2 Ohm output impedance, it effortlessly drives low-impedance, high-sensitivity, and planar magnetic headphones. With its robust output stage and low-impedance line outputs, the discrete Class A HPA-1c functions seamlessly as a high-performance preamplifier in two-channel audio systems.
Specification
| THD | < 0,005 % @ 1 V výstup |
|---|---|
| Input impedance | 50 kΩ |
| Power consumption | 23 W |
| Frequency range | 10 Hz – 100 000 Hz (10 Hz – 100 kHz, -1 dB) |
| Gain | 8 dB |
| Output Impedance (Headphones) | < 2 Ω |
| Dimensions per Unit (W × D × H) | 27,9 × 34,3 × 10,2 cm |
| Unit Weight | 6,35 kg |
Pass Labs
Pass Labs is a high-end audio company based in Auburn, California, in the United States, founded by Nelson Pass in 1991. Pass Labs developed prototypes of Class A amplifiers with single-ended circuitry. Among the company’s first products was the ALEF range of amplifiers, featuring unique technology and design. Pass Labs developed Super-Symmetry technology, which it continues to use in its top-of-the-range products to this day. Pass Labs specialises in the conception, engineering and design of high-end amplifiers and preamplifiers.
Manufacturer information (GPSR)