Proteus

Designing and Building a Two-Stage Audio Amplifier from Scratch

Full technical report on the design, simulation, PCB fabrication and testing of a two-stage audio amplifier using a TL071 active band-pass filter and OPA551 unity-gain output buffer, optimised for an iPhone input and 8 ohm speaker load.

hardware

Two-Stage Audio Amplifier

Analogue two-stage amplifier with TL071 active band-pass filter and OPA551 buffer, simulated in Proteus and manufactured as a custom PCB