As a lockdown project I'm building a mini amp based around two PAM8320 mono class D amps and a TDA7439 three-band digitally controlled preamp/input mux/processor, and I thought I'd share it here. I'm a relative newbie to electronics (also working on a 74-series logic version of the 6502 microprocessor) but have really been bitten by the DIY amp bug.
It's currently in prototype, mainly built on stripboard, and an Arduino (clone) used for the front-end and I2C interface for the TDA7439. I...
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It's currently in prototype, mainly built on stripboard, and an Arduino (clone) used for the front-end and I2C interface for the TDA7439. I...
Read more