[fej]

Good post. Couple things.

If you use only a DMM you are making several assumptions. One being that the amp you are using is actually making the power that is advertised. IE 100w from a 100x4 amp. If it is making less than advertised you may end up setting your gains too high as the math you are basing your DMM calculation on is incorrect. The other side of the coin is unless your amp came with a birthsheet, and depending upon the quality of the amp you are using, you may actually be making MORE power than advertised, and therefore not using all of your available, unclipped power for your system. IE 127w by 4.

DMM is a very good method, but if you have any knowledge at all with tuning stereo systems, you should do your fine tuning with your ears, unless of course you have an O-scope. Recordings for music are far dirtier than a test tone, and no one spends any time listening to test tones, so IMO they cannot be the end all, be all for final tuning.

I'll probably get flamed being this is my 2nd post, but I am certainly not "new" to audio. Keep up the good work jntar.

Fej