Amplifier 2004
This is the project page of my 2004 amplifier project. It is a hifi amplifier built around two TDA7294. It has got six audio inputs, two audio outputs, a headphone output (powered by its own headphone amplifier) and of course two speaker outputs (2 x 80 W).
The photos show in this order the following parts: Controller board with PIC16F84A (reads the keyboard for channel selection, mute etc.), the preamp/input selector board (with NE5532A’s for amplification and relais for switching inputs), the power amplifiers (with TDA7294), the headphone amp and finally the case.
