just wondering who has got it and what type they use and if they like it i am looking at spending about 7 grand on some so many options out there but
I believe your talking about the class rating of an amp. Class D is the most efficient but sound quality suffers. They usually run around 85-95% efficient. Class A amps are the least efficient but have the best sound quality. They usually run between 30-45% efficient. Between these two classes there are B and C classes and follow suit with efficiency/sound quality. Class A amps are the most expensiveWhat you really need to watch for towards wattage, is what kind of wattage it is, if I'm not wrong most of the real good equipment uses a DC wattage, think that's how they call it. Know that my Harmon Kardon uses that and basically you use less power for more wattage, something like that. Sorry! This is what my Receiver produces;
100 watts minimum continuous power per channel, 8with a maximum total harmonic distortion of 0.08 %
ohm loads, 2 channels driven from 20 Hz to 20 kHz
My room is about 12 X 20 and haven't gone lower than 25 and it's loud enough for me.