Amazon announced four companion products for Echo that make Alexa not only sound better, but work with existing speakers and stereo systems. In addition to the all-new Echo Plus and Echo Dot for 2018, ...

All, I posted this at DIYMA, and didn't get too may helpful responses, so figured I'd ask the Hive Mind. Back in the '90s, I used to set amp gains by turning the level pot all the way up and then ...

Taking apart a circuit board or module and reconstructing its complete schematic is a valuable skill. We can see how someone designed circuitry to gain ideas that can be applied to our work. And ...

I just moved into this apartment, and sitting in my room is a Scientific Audio Engineering A105 Subwoofer Amp...According to Google, it's 50W. Also present is a monsterous 15" subwoofer in a box that ...

Snell Acoustics introduces an external subwoofer amplifier, the SPA200 , for use with their passive in-wall subwoofers.The SPA-200 is a 19-inch rack mountable amplifier to match up with Snell's ...