A Thermocouple is a terrific way to measure temperature. The effects of temperature change on dissimilar metals produces a measurable voltage. But to make that measurement you need an amplifier cir… ...

[Dino Segovis] wrote in to tell us about his “hack”, making an AB Audio Amplifier. The advantage of this particular amp is that the transistors never turn off, which would cause distort… ...

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

I’ve seen a few commercial and DIY tube-amp docks, but they’re expensive, uninspired or both. So I’ve come up with a version that anyone can build for about $400.

If you play all your music from your smartphone or tablet but still want a traditional hi-fi system, you will want something (a standalone streamer or streaming amplifier) that supports Bluetooth ...

The HD3 Wireless are a perfect example of a wireless active loudspeaker that sounds dramatically better when hardwired to a superior sounding DAC and pre-amplifier like the Schiit Audio Modi 3 and ...

2. Onkyo A-9010 stereo amplifier Still offering unfeasibly good value for money, Onkyo’s A-9010 is a class-leading stereo amp to partner the Vault 2.

Learn how to build a mini amplifier using basic electronic components. Perfect for sound experiments and educational projects. Compact, practical, and a great way to learn about audio electronics.

A couple solid options are Amphony’s diminutive, 40-watt Model 200 microFidelity Mini Amplifier ($69) and Dayton Audio’s 50-watt (and more polished) DTA-100a ($130).

The company's black boxes aren’t the prettiest, but you can find iconic vintage amps like the NAD 3020 (introduced in 1978) for under $200 used, and they blow many modern amps out of the water.