Explain what is a clean power amplifier?

...an absurdvation for one that doesn't use or even have a pre-amp....

I can turn my volume to max....and nothing....even with my low-rent IC's.

AB SS amps....nothing pedigree....SS 'pro' Eqs'....

The RTA sez their's a 'noise floor'....but I can't hear it.

*shrug*  Maybe I'm just lucky....or in a local focal locus that allows such.

If so....no, you can't move here....*G*

Obviously I don't Dare touch anything other than 'volume'.....

One false move...*poof*