Total System Gain Question

I had a gain matching problem between amp and preamp in my system (Pass Lab XA60.8 and AR Ref 6).  Added to this my speakers are 106 sensitivity.  Could not take the preamp volume past 7 (out of 100), it was too loud.  Loads of background noise.  Tried a set of Rothwell attenuators between preamp and amp.  Problem solved.  I don’t know if you will have a problem.  Many in this forum more expert than myself.  What I can assure you is that you can fix that problem for all of $25 (as I recall).

Just plug it in, turn the preamp up to max, wait 5 minutes, and see if you have any hearing or speakers left.  Geesh!  (The things some folks stress about!)

Just as long as something in the chain goes to 11.

russ69"I may be confused but if your pre-amp can put out 575mv, the amp will be at full rated power. I don't think it matters what the gain stages are."

This is correct and accurate and it is all that is really relevant in this case there is a lot of misinformation in this thread how can you calculate power amplifier output without knowing any details about the power amplifier capabilities, performance, or specifications theer is technical "word salad" in this thread if you can't show you're math work then you can't make the argument, sorry fella!

"...there is a lot of misinformation in this thread how can you calculate power amplifier output..."

Amplifier power measurement has to include the frequency, the load, and the distortion level to have any meaning. It's a moving target, you just can't pick one number and say you have determined the power output of an amp.