Am i missing something without a power conditioner?


I need your advice on power conditioners. I know there is alot talked about with power conditioners. But let me explain my situation and what i have. First and foremost i upgraded all my stock power cords. I am using and have a Krell FPB 600 amp with a Shunyata Research Sigma HC power cord. I am using and have an Audio Research Ref 6 preamp with a Shunyata King Cobra Helix CX power cord. And have a Rega ISIS cd player with a Shunyata Sigma digital power cord. I have 1 dedicated 20 amp line with a 4 plug 20 amp wall outlet that my amp and preamp plug into. My question is with these high quality power cords do i still need a power conditioner? 
128x128Ag insider logo xs@2xtattooedtrackman
i use a Furman PL-8C. it has a big torroidal tranny
the power in me hood is suspect but seems stable and clean. we do not tax the power here at all. my non-audiphile system of MacBook Pro and LSR 305s sounds very good, noise floor is non-existent and black. I do run a reclocker for the USB into a PreSonus DAC.
everything is plugged into the furman and the system is protected and fed RFI free and regulated power.
if nothing else, i feel better for using the Furman. I lived somewhere that had terrible power and lost a nice Yamaha Nat Sound reciever twice in 6 months....
boa_constrictor
Power conditioning (AC voltage regulator and RF noise eliminator) is a good thing to have provided:

1- the AC power your utility supplies is not stable and not clean ....

How do you know if the power supplied is stable or not?

I use a vintage analog meter made by WIZ (Power Line Monitor) whose needle will tell me how the power is being supplied ...

When the power supplied from your wall socket is very stable, there is no detectable benefit by using a power conditioner.
There's a lot more to quality AC than simply stable voltage. In fact, power factor is at least as important, and is the reason that many systems benefit from power conditioning.
Especially for amps, it can be a good idea to check with the manufacturer. Some have definite views about using power conditioners with their products.  Otherwise, I've just gotten clear improvement installing an AQ Hurricane HC cord to my Aesthetix amp. But there are a lot of good wires out there. 
Jim Heckman
O yes, the Hurricane cord for my amp goes straight into the wall. 
Jim Heckman
aalenik ....That is exactly what i heard also from alot of people. That putting a conditioner on a power amp is like putting a condom on it? Now ive read alot of good reviews about the Shunyata Denali 2000t conditioner for HC amps. I too honestly dont know. And being that i want to find one used you can forget about demoing it.                                                                                                                                                                                                        billshenefelt... Yes thats exactly right !!!