what is a right IC for my current setup

My comments have nothing to do with my business.

They are simply facts.

Experience is the best teacher.

I recommend you look into it.

thank you guys, I want to sidetrack a little bit here ( perhaps I should open another thread). Besides the ICs, the power cords and the conditoners are selling just like the equipments its almost unbelieavable. Does any one has an opinon of the Black Mountain power cord? Seems like their price is relatively more reasonable but then there has not been a lot of reviews about them, good or bad. Is there a sensibly-priced power cable and/or conditioner, or I shall not worry about it at this time? thanks again for your inputs.

A "sensible" priced power cable is the one supplied in the box with your Krell, the same cable they do their R&D with.

I know there's many who swear by super-dooper PC's (and who's opinion I respect), but I just can't imagine how a higher grade PC than your household wiring can make any difference. IMHO, the old adage "a chain is only as strong as it's weakest link" applies to your power supply; unless you run a dedicated line back to your fuse-box, then there's little point in using anything more than a well-made standard quality power cord.

Carl,

You just have to get a decent power cord, and try it. Then you can make an educated recommendation.

I agree with your theory, but when I got a decent PC and tried it on my Classe amps, I could hear a noticible improvement. I could hear this difference on regular non-dedicated lines.

Darrell

Fair enough Darrell, although my system probably isn't resolving enough to warrant an aftermarket PC. (NAD c320 amp, Cambridge 640c v2 CD player, B&W 602 speakers).

I know some argue that a PC acts like a filter, but from a purely objective point of view it shouldn't do so. If a PC is of equal or better quality as the cabling behind your wall socket, it should't have any negative effect on your system. How it can improve it is a mystery to me, and will probably remain so!