Why if 1W can produce loud outputs do 300, 500, 1000W+ amps exist.
If we all hear the same frequencies why can the same loudspeaker sound differently to listeners standing side by side? Is a graph then meaningful or useful?
Explain "lossless" and it's effects on a system. Is Bluetooth lossless? Can it be? Is there an over the air signal that is?
Not arguing Class D vs A vs A/B etc but under what conditions might one be a better choice - budget, system design environmental.
Do loudspeakers wear out?
Is tape a viable source? When?
How not to build a system. Downfalls of choice and execution.