Sound Quality in Amps?

[Biker 10+ year member]

Quick question, I have 2 amps both have 100W X 4 @ 4 ohms, both have all the same settings, crossovers etc.

Cheap amp is .3% THD at rated

Expensive amp is .08% THD at rated power.

With Infinity perfect components in front 4 X 100W RMS

and 2 way Coaxel components in the rear 4 X 80W RMS

Will there be a noticable sound quality difference.

I have had so many problems with the $500.00 amp I want to put my old one back in but need to know how much difference there will be in quality

Thanks

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[GSteg 10+ year member]

If anything about the amps, the frequency response are not the same, therefore giving you different sounds. If anything, the money spent on amp should be because of quality/features/etc, not sound. Dont worry too much about THD specs. Under 1%, you're good to go. Your speakers will put out more audible distortion (at least 8% in many cases) far more than what the amp does.

 

[tRiGgEr 5,000+ posts]

The only thing you need to worry about in an amp is build quality and actual output power (true RMS rating). And of course the features.

It will depend on what amps they are. A Arc compared to a Lanzar might be noticable But not because of the "SQ" of the amp.

 

[FoxPro5 5,000+ posts]

A amplifier that does it's job in faithfully amplifying the source signal with nothing added and nothing left out has "good" sound quality (i.e. a term used to objectify the accurate reproduction of the sound source). That is why those numbers you mentioned don't necessarly predict said qualities. I've heard some well built amps that reproduce assarific music //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif