Amplifer Wattage Question

Kij,
Let's say you kept away from 'max power'.
could you at least get a number that made sense using the technique I describe?

Also, My ICE amps (max) power spec is time limited. I suspect you'll fry the Zoebel network at that output.

Agreed, however. Even if you could do it, why bother? Properly matched stuff and even a minimal ear should provide ample warning of impending doom.

Also, now that i re-read, the OP specified 'normal listening session'..... I haven't listened to sine waves since the 60s.....
Can you figure out power output during regular music sessions? How much bench equipment would it take..... Scope? Multiple DVMs?

Magfan - I don't listen to sinewaves either, I find it a little boring.
If the goal is to measure RMS power delivered than standard RMS meters will be probably useless. They don't measure well at high frequencies and they have limited crest factor. Since RMS is defined as DC that produce equivalent heat perhaps measuring temperature will be more accurate (resistor in series?). I wonder myself if there are any professional power meters that measure music power accurately. I'm not sure how important it is.

As for Zobel in D-class - many people complain about it. Yes it will be damaged with prolonged exposure above certain frequency but it will never happen in real live.
I would say that average power that amp can deliver is not of use. I want to know how much peak power (or peak current) amp can deliver. 80V supplied 1kW Icepower (1000ASP) can deliver about 40A on 2 ohm load for about a second and that is very impressive (3.2kW). At 10kHz its output power is limited to 200W but this would make person deaf and I don't know of any tweeter that can take continuous 200W (more like 20W max). In real life average music power that tweeter receives is a fraction of a Watt. The most important is match, that you mentioned. My experience is limited, but from what I'm reading certain amps just "like" certain speakers more than others.

Here are a couple a simple-to-built LED audio output meter schematics. Easily fast enough to register peaks. They're limited to 10 power levels, and won't give you fine measurements though. (http://freecircuitdiagram.com/2008/09/13/audio-power-meter-show-audio-amplifier-actual-output-power/) (http://www.circuit-projects.com/audio-circuits/10-led-vu-meter-project-by-lm3915-and-lm324.html)

Thanks everyone for your responces.

I was woundering if a amp. is rated for 10 watts of class-A operation 250 watts totel A/B. At what volume level is the amp coming out of class-A ?

How loud is 10 watts ?

How maney watts is a amp. putting out at normal listening levels ?
Just curious how this works.
Thanks Russ

Russb - 100W is 2x louder than 10W. 200W is 1.23x louder than 100W and 250W is practically the same as 200W. So in total 250W is about 2.5x louder than 10W.