Designing a very own home theater system is the main goal of this project where a 7.1 preamplifier was desired to be constructed. The preamplifier contains three analog inputs chosen by relay input ...

For this year’s Hackaday Prize, [skrodahl] is building a beautiful tube preamp. It’s a masterpiece of glass and free electrons, it already works, and it sounds great. This circuit is a modified ...

Music aficionados searching for a new project to keep them busy one weekend may be interested in a new preamplifier DIY kit created by Juergen Grau based in Rohrbach, Germany. Check out the video ...

Developer Max Williams has published a new tutorial to the Hackster.io website providing details on how you can build your very own open source HiFi preamplifier. The project includes schematics, PCB ...

[Dane] built this excellent home theater pre-amplifier. He used [Mark Hennesy]’s pre-amp design to start with, and added selectable XLR, RCA, SPDIF and even USB audio inputs. Discrete inputs from his ...