Quote Originally Posted by tony3d
I found the ground loop problem! It was the cable box which goes into my 62" tv then the tv goes to my Crown IC-150. Pull those off the Crown and the buzz and hum are gone. I bought the Rolls he18 hum reducer and hooked it up between the tv out and Crown IC-150 and that took care of the hum in my system and doesn't effect the rest of the system. Sounds great plus I can't get the amp hot enough to run the fans. I'm very happy so far. I have no hum or buzz the amp is very quite.

*My question is why don't more people buy these pro-amps for home stereo's? This is a very clean powerful amp for $699.00. You would pay at least $1800.00 for half the power in a consumer amp. I'll never look back. I will admit the sound is a bit more analytical the best way I can describe it. I'll never run out of headroom. I have to laugh when I hear people talk about how harsh these pro amps are, I sure don't find them harsh at all.
Glad hear you solved the hum problem and how you did it.

As for pro amps, I have heard a lot of discussion about it, but no really compelling arguments against the pros. No doubt there are some cheap pro amps that don't sound very good, I doubt your Crown falls in that catergory. My guess is there is really no objective reason for not using pros except the minor one of potentially noisy fans.

But let put it this way, if a person has dedicated himself to the "warm", "harmonically rich" sound of tubes (for example), is he likely to admit that pro sound is as good or even as accurate????