Learn how to make a speaker amplifier at home with our step-by-step guide! This video provides detailed instructions and tips ...

How to make your own amp and speakers Gadget haberdashers Technology Will Save Us want you to get down and dirty with a DIY kit ...

A passive phone amplifier will make your phone audio louder, but some look like trash. Build this wooden one so your setup both sounds and looks good.

Half a century ago, vacuum tubes were very common in audio amplifiers. A small voltage applied to the grid of a vacuum tube controls a relatively large current that drives the electromagnet in a ...

We have reviewed hundreds of stereo amplifiers – for most hi-fi systems, these are the only three you need to consider How to set up your AV receiver and get the best sound Best hi-fi systems 2025: CD ...

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 ...