Class D amps are simple – just take an input ... but [George] found a home for it in the power section of an amplifier. The ATtiny is clocked at 16 MHz, making the ADC clock run at 1 MHz.
First of all, there can be some confusion between integrated amplifiers (one that combines both a preamp and power amp) and stereo receivers (which is basically an integrated amplifier with an AM ...
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