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

[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… ...

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… ...

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.

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 ...

Low-cost car audio amplifiers typically don’t incorporate a step-up dc-dc converter, so they use 12 V from the car’s battery to drive the speakers. (Actually, a car’s battery voltage is ...

· Boot box · Duct tape (optional) HOW TO BUILD IT Wire the Amplifier 1. Place the amplifier on a work surface, flat side down; position the amp so that the row of four small holes is on the top ...

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).