The biggest variable in the determination of how good something sounds when listening to reproduced or actual live music is the human auditory system. Thus, it is not true that 2 amplifiers that measure the same will sound identical, even if they are listened to at different times by the same human. This fallacy is sometimes repeated by engineers but never would never be uttered by a neuroscientist who understands the complexity of the human auditory system.
what's going on with specs?
I'm having a hard time buying a power amp. I'm in the 5-10k range and whae I'm finding are things like PS Audio BHK 250. Specs show 250@8ohms and 500@4ohms. Then the Parasound JC5 shows 400@8ohms and 600@4ohms. Looks like PS Audio doubles at 4 ohms which makes me think it's a stronger amp until I notice the PS Audio spec is at 1 kilohertz and the Parasound measures 20 to 20 kilohertz. That is very confusing and I don't understand why PS Audio doesn't give full power measurements. Anyone with knowledge of these two brands or others. I have the Elac Vela 409s to drive.