Traveling-wave parametric amplifiers (TWPAs) are electronic devices that boost weak microwave signals (i.e., electromagnetic ...

When it comes to audio setups, there are really two main approaches: integrated amplifiers and separates. Integrated amp ...

Our picks for the best dedicated headphone amplifiers for audiophiles includes Apos, Feliks Audio and STAX.

WiiM has become quite the disruptor in the budget hi-fi space over recent years. The California-based audio company is now ...

But this is mere carping. In reality, there has never been a better time to be a guitar player. Even bedroom strummers can ...

One of my first jobs as a freshly minted graduate engineer involved the maintenance of a set of analogue chart recorders. They were museum pieces by the early 1990s: a motorized roll of graph paper ...

Feedback is an ubiquitous and unavoidable basic technique that keeps the world running. It is only controversial in consumer audio, and then only specifically in power amplifiers. This dates from ...

For the last 15 years, Schiit Audio has been on a mission to make high-quality hi-fi components that are significantly more affordable than they probably should be. Today, the California- and ...

Pass Labs’ new HPA-1c refines the original with lower noise, a redesigned power supply, and stronger performance, but its $4,045 price puts it up against serious rivals from Bryston, Violectric, and ...

The Schiit Ragnarok 2 is the rare purist audiophile amp designed and built in the US. It's selling for $1,499. Ex-movie theater projectionist Steve Guttenberg has also worked as a high-end audio ...