Amp is plugged to the wall, why use a conditioner?


I keep hearing how important it is to have a line conditioner if you have higher end equipment. I also hear that I should plug my amp into the wall for best performance. If I get a line conditioner for my CD, DVD, and Control Amp to purify the signal, will it be defeated by the messy signal coming from my amp being plugged into the wall? Here are a few other questions: If I do use a line conditioner, should I get a few to plug into different wall sockets? Which conditioners do not limit my amp? Gray 400? Shunyata 2? Monster 2000 or 7000? When I do not have any music on, I can hear a low hiss or humm from my speakers. Will the conditioner help clean this up?

Thank you very much,
Greg
gdush
Gdush:

I have one Furman AR-15 for two JC1 mono power amps and a HSU subwoofer; and a second one for the preamp, CD deck, and D/A. The power cords for each AR-15 are connected to the same power outlet. Cannot comment on the products you mention because the AR-15 works differently than all of them (to my knowledge).

In the Furman, the networks (including capacitor storage) are across the ac line, so they do not limit current. Current is limited only by the power cords (and breakers in the extreme).
+1 on Running Springs.

The reviews on them often mention dynamics of the amps not being constrained. A real selling point for their line of conditioners.

I just compared a PS Audio P300 power regenerator on my front end (everything but the amp) to everything (including amp) plugged into my Running Springs Haley and there was very little difference between the two set-ups. Perhaps a slight loss in dynamics with the P300, and there was audible fan noise from the P300. Considering all the benefits attributed to power regeneration, this seems to speak very highly of the Running Springs products. Glad I was able to audition the P300 before buying.
Gdush, you might read this...
http://10audio.com/audience_ar2p-to.htm

...and other reviews of the Audience aR2p and its ...TO variant.
http://www.audience-av.com/conditioners/conditioner_reviews.html

I've ordered a '2pTO for my 650-Watt McCormack DNA-750s. We'll see how the system sounds with and without it.
.
my amp does not sound nearly as good plugged into the Running Springs Jaco as it does plugged directly into the wall.