Explain Amp classes & how effects sound?

Also class D had NOTHING to do wit digital. Many people presume wrongly that the D stands for digital. This is just not true.

There are amps being sold as class A but in truth some of these are Class AB with a high class A bias. But how much watt do you really need? I just spoke with someone who ones 1000watt mono amps. He never saw the needles move beyond 15 watt and normally not beyong 5 to 10 watt.

On a person note if I was looking for a power amp. I would look van a SS class A/B amp with a high biased Class A. So that normally you would play in pure class A but when you need lots of power for a second or two it would switch. So a 250watt amp with first 50watt or so in pure class A. Don't know if such a thing does exist.