Above all, the amplifier made my speakers sound better than they ever have. Of course, this amplifier is meant for the high-end market at an MSRP of $12,500.

From how amplifiers work, to the names of some of the crucial components, and even what kind of amp might be the best for you, we've tried our best to demystify the electric guitar's best friend.

That June 11 amplifier had excellent CM accuracy, but darned little CM range, about +1.9 V to perhaps +2.6 V, which was adequate only for the 4.4-V bridge shown there. What if you want a CM range ...

The Scandinavian hi-fi company Hegel has been around for over 30 years and is best known for making high-end yet bespoke audio components for serious audiophiles. Its latest integrated amplifier, the ...