More power or better quality power?


I use a 120 watt NAD integrated and a pair of Sonus Concerto Monitors (Home version), and a REL stadium III for the low end. I am researching new integrateds because my System sounds lifeless. My car system sounded much the same before I added a higher power (twice the wattage) and higher quality (3 times the price) amp. The difference was night and day. So I am wondering, do I need more power for my home system, or do I just need better quality power...or worse yet, BOTH! My room is pretty large (18 by 18 give or take, plus a high vaulted cieling). The system is tucked in a corner and i listen from about 8 feet away on axis. I listen to everything, but mostly rock. I was considering a 100 watt Primare that is on audiogon right now. I was going to go Plinius, but I think with warm speakers, and warm cables (cardas) That might be just too much warmth :)
Low level quality of sound is important because I do no live alone and don't want to need to crank it to get a good quality sound.

So, is bigger really better, or is it it the quality?
phoenix469
There is a common myth that because the sound emerges from the speakers, that the speakers are the most important.

If the speaker is really that good it will reveal everything upstream from it too. The fact of the matter is everything is important. It is also true that there is no relationship between size and quality: there are plenty of big amps that are dreadful and plenty of small dreadful amps, just as there are big wonderful amps and small wonderful amps.

One thing about high end audio, it is intention rather than cost, power or size that makes the difference. If the intention is to make money, the results will be very different than if the intention is to be the best.
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Everything Atmasphere said...and

03-16-07: Bob_reynolds
It's not a myth, it's logic. Electronics do not directly interact with the acoustic space. Speakers do. Until speaker distortion is relatively close to that of electronics, the speaker is where our concern should be placed.

The fact that the speaker interacts with the acoustic space does not make it any more important than the components driving the speakers. Your car's tires directly interact with the road, but you wouldn't say your choice of tires is more important than the engine or the suspension.
As many have already said that the synergy between componets is VERY important. It your case you also have a relitively large room which can also play acoustical tricks on you. I agree with Dwhitt & atmasphere that try some placement changing first, this in so many cases exposes many differences before you have to spend any money, if you aren't satisified with the results after a couple weeks (you have to give youself time to adjust to the changes) try to better pinpoint what is unacceptable to you. It might turn out to be a cable change or other componet that in reality is the soruce of the trouble. Please also take in to consideration the speaker(s) efficency too, in our "hobby" there are so many variabiles that make big differences in your changes. Good Luck and keep us all posted to your progress
All things being equal, a simple circuit will most always produce a better sound at low levels and if you don't need the additional power, thats where you need to be. More power does involve more circuitry which can adversly effect low level detail & transparency to some varying degree. In addition, quality parts and how a product is engineered will also play a major role in sound quality. So for Phoenix469, my vote is for sound quality as opposed to more power.