Originally Posted by master0068
It's also strange thatyou say "0db" means nothing, yet that every amp can't play at that "volume setting" without clipping?
The problem is that your question was not well defined and the answers continue to miss the ill- stated point as well.
You and others keep referring to a "dB".
In that is your first problem.
There is no such 'thing' as a dB.
It is a ratio expressed in powers of 10.
Seeing as how you have not defined your terms - such as dB SPL, or dBV or dBfs, etc. Some have a defined and quantified reference value with units to which '0 db' is referenced. Some do not.
Without this, you are simply referring to an amorphously defined relationship of some magnitude related by powers of 10.
And as such "0 dB does mean nothing" - it means that it is at unity with something else, but we have no idea to what that level corresponds. And depending upon what that level may be, a piece of equipment may or may not be capable of handling it.
So now you get to go back and find out to what actual value or use the term "dB" was used in the original context, and then, once it is defined, THEN you can proceed to draw some meaningful conclusions as to the nature of the actual levels and the relationships to which it provides information.
Until then, this remains an ill formed question that leads to ill formed answers.