CircuitGeek

With Foster FX120 DIY BASS Reflex Speakers you can produce a good quality sound without having to invest extra money. With this easy to assemble speakers you can make a good speaker system without any trouble. Speakers have many great features like a good frequency response without any significant attenuation and distortion. The frequency response [...]

Microphone preamplifier is a circuit that stands between microphone and stereo amplifier. You just need to connect microphone to circuit input while output can be connected directly to line/CD/aux/tape inputs.

This simple circuit (Design and copyright Tomi Engdahl 1997,1999 ) can handle both - electret and dynamic microphones. As dynamic microphone doesn’t require power it [...]