The idea of putting a tube in a pair of headphones does tend to bring mental images of massive lightbulb-sized tubes to mind, ...

[ErikaFluff] needed an amp for her Grado open cans. Rather than build yet another boring black box, she built what may be the most awesome headphone amp ever by adding a tiny CRT which displays ...

There are a couple of reasons I suspect it's taken this long to see a vacuum tube in a pair of headphones. Tubes are hungry ...

Amplifiers that use vacuum tubes instead of – or alongside – solid-state electronics are marketed on the basis of their ...

Best Buys Our expert pick of the best headphone amps includes affordable, portable models as well as premium units for home listening.

FiiO is a rising star in the world of digital audio. The company is launching three products at this year's CES and promises to set new price and performance benchmarks.

FiiO expands its line-up with K17 Headphone Amp, which provides a lot of features and connectivity that raise the price, but should please any headphone fan. 2024 was a very busy year for the ...

Questyle’s M18i mobile headphone amp, which just debuted at CES 2025, might look like a typical dongle-style DAC/amp — it actually bears a strong resemblance to the company’s M15 DAC/amp ...

The HiFiMAN SERENADE Wireless DAC/Headphone Amplifier offers lossless streaming over Wi-Fi for $200 less than its predecessor. From Dr. Fang Bian, President and CEO, HIFIMAN Electronics: “The addition ...

The same specs are available in USB Audio mode. Technically, the FiiO K17 is a headphone amplifier, with 4000mW-per-channel of power and front-facing outputs for a variety of headphone connections.

The Retro Nano – a speaker and headphone amp shaped like a tape player – brings a vintage look to modern music device ...