mtrycrafts said:
If an amp is rated at 110x7 then it should put out 110 into all the channels all the time.
Why??? That is not what is stated. Only that each channels will deliver 110
watts.
2 chan amps have always been rated correctly.
2ch amps have been rated both channels driven, or 1 ch driven.
So when people buy a receiver they are really buying 7 monoblocks. That's great, I never thought about it like that. 7 monoblocks that you can't use together, that is worth a lot.
Normaly 2 ch amps are rated Watts/Chan, both chan driven.
mtrycrafts said:
Do amps need to put out full power at full bandwidth? Absolutely. Today’s movies are extremely dynamic and need adequate power to play them back.
Yes, dynamic, meaning quick peaks here and there, not full spectrum peaks. But, amps are rated 20-20khz, unless otherwise specified.
There are dynamic peaks that essentially look like CW to an amplifier (anything longer than 100 ms)
It is false advertising. Multi channel tests are of value.
Maybe.
mtrycrafts said:
These tests give you a good idea of how much dynamic range your amp actually has.
BS. Dynamic headroom is usually given.
I'd bet that measurement is as accurate as some of the other specs Mfg's give.
mtrycrafts said:
There are plenty of instances where you are playing the front 3 channels at close to full power;
Put some scopes on all three channels and superimpose them.
First off no one uses scopes anymore. It's called a digitizer. Second, what good would that do? The amount of current drawn is frequency dependent, so you would have to have a Z curve of the speakers, take your voltage measurements, perform an FFT, then divide out the Z curve, then you can integrate the waveform and figure out how many watts were output. ( I did skip a few steps here).
mtrycrafts said:
So in the Yamaha’s case, it is pathetic.
An opinion.
This is why separates are a much better option.
Another opinion.
Good ones, based on fact.
QUOTE=mtrycrafts]
They give you more even if they are plugged into the same outlet.
Then why do you have 5 circuits?[/QUOTE]
Meaning more than a receiver ever could.