Audio amplifier fault diagnosis gets a fast reality check as Roberto Armani shows how a square wave exposes what a sine wave ...

Most audiophiles and enthusiasts have grown up with at least a basic understanding of what an amplifier does. It takes a tiny alternating electrical signal that represents the moment-to-moment ...

1. Is Amplifier Weight an Indicator of Robust Amplifier Design? You have to find out if the amplifier is a Class A/B analog amp or a Class D digital amplifier before you can generalize about weight ...

This is just an ultra-quick blog post about a nostalgic IC: µPC1237. It’s a timeless bipolar analog IC from NEC designed for protecting stereo audio power amplifiers and loudspeakers. I used to see ...

Many mistakes can be made during the building and setting up a hi-fi system, whether it is as minor as placing speakers too far apart or as calamitous as knocking them over and denting their tweeter – ...

International Solid-State Circuits Conference in San Francisco always seems to make space for audio amplifier developments, and this year is no exception, with some extraordinary distortion and noise ...

While we like the idea of plug-and-play set-ups as much as anyone, there’s more to getting the best out of stereo amplifiers than simply powering them up on a hi-fi rack, plugging in speakers and ...