“Enter the Pass Labs HPA-1: it’s a powerful and versatile, standout headphone amp that can double as a superb preamplifier for a two channel speaker system. Boasting the iconic and minimalistic machined aluminum chassis typical of Pass Labs, it delivers a deeply satisfying, vivid, and robust aural experience.”

2016年6月16日 · Pass Labs says that the HPA-1 "easily drives headphones presenting loads from 15 to 600 ohms, particularly excelling with planar headphone designs." Overall, the amplifier appears superbly well made and finished.

2022年11月19日 · This is a review and detailed measurements of Pass Labs HPA-1 headphone amplifier. It is on kind loan from a member and costs US $3,675. The box is quite heavy which is "nice" given how much it costs. The look would be good …

2024年11月22日 · Best Headphone Amps Series: Pass Labs HPA-1 Review - The Pass Labs HPA-1 comes with the Pass pedigree and accompanying price, so this is not the headphone amp for most people. But does it do things sonically that …

2020年12月30日 · The Pass Labs HPA-1 is one of these “rare” amps. My HPA-1 Pass is for sure a well-known name in the industry and Nelson Pass is a “giant” in this area.

The HPA-1 headphone amplifier from Pass Labs is one of our most popular headphone amps at Moon Audio. Featuring a single-ended quarter-inch headphone output and a large and extremely accurate volume control, the HPA-1 is compatible with most full-size headphones on the market.

2025年2月20日 · 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.

2017年7月7日 · The HPA-1 is an all-analog amp that marks Pass Labs’ rookie effort in the headphone market. Outwardly, its brushed aluminum cosmetics are tasteful, and bear a strong resemblance to Pass Labs’ stocky, full-sized components.

The Pass Labs HPA-1 Headphone Amp is a Class A headphone amp that was designed to amplify headphones with impedances of 15 ohms to 600 ohms. It can deliver full-range dynamics across the entire frequency range. The HPA-1 can even drive headphones that present difficult loads in terms of impedance, power consumption or both.

Designed as a power amplifier rather than a typical headphone amplifier to be able to drive low impedance planar headphones from brands like HiFiMan, Audeze, Dan Clark, and more. Low feedback wide bandwidth discreet design. Class A direct coupled Mosfet output stage. Custom low noise Toroidal power transformer with a Faraday shield.