HELM DB12, AAA Amplifier HELM DB12 is a self-powered, portable inline THX AAA amplifier that promises a boost of 12dB from its 110mW of power to its 3.5-mm connector. The cleverly-named device ...

Headphone amplifiers make for simple, practical electronics projects. The Bass Bump Headphone Amp is no exception, since it’s made out of easy to source parts, and can be built on a proto-board ...

The inline controls and volume switch on the HELM DB12 AAAMP mobile headphone amplifier. HELM has also included a soft carrying pouch, albeit a bit large.

Without a headphone amp, the sound coming from your computer or smartphone’s audio jack simply isn’t very good. It’s flat and grainy and doesn’t deliver the expansive soundstage that higher-resolution ...

FiiO describes the K15 as a full-system desktop DAC/amp that’s built for audiophiles, making it the perfect partner for a pair of high-end wired headphones or any active speaker system.

Why it made the cut: Superb, reference-grade sound makes this a clear winner for the best solid-state headphone amp. Rupert Neve Designs is a relative newcomer to the hi-fi world but the company ...

The Rotel DX-3 is a headphones amp that can also act as desktop DAC Wireless aptX Adaptive and HD as well as wired headphones support It costs $1,499.00 // £1,399.00 (about AU$3,065) Huge ...

If you’re the kind of person who owns more than one high-end headphone, the Rogue Audio RH-5 is the amp for you. Ex-movie theater projectionist Steve Guttenberg has also worked as a high-end ...

If you love that tube amp sound, check out Audio-Technica’s valve headphone amp $6,000 amp offers huge range of 120Ω, 82Ω, 33Ω and 0.1Ω outputs for true audiophiles.

The KB3 is a new mechanical keyboard from audio brand FiiO with a built-in headphone amp and DAC. It’s available for between $129.99 and $149.99 from AliExpress.