To answer your earlier question, yes, it would be hard these days to find a "bad" amp. The problem is, there are many amps (typical mid-fi class A/B amps as example) that simply don't perform their best when only outputting a few watts. These types of amps are often designed for no specific purpose nor specific type of speaker, so they walk the middle ground of not being truly great at anything. They may be good as a "general purpose" amp for typical speaker loads. Side note : Often these types of amps like to be pushed a bit to provide their best performance. With your Omegas, such an amp will never get pushed (into its best performance range). Class A and class D are much less of crapshoot when pairing with Omegas. There are technical explanations for this, but basically, they do not need to be pushed to perform their best. Specifically, low power class A amps (tube and SS) are designed for use with speakers like Omegas, so you'll find most experienced recommendations steering you in that direction.