How Important is power conditioning if you have

Elizabeth, how can equipment designed for 60Hz function as intended when increased to 100 Hz? What voltage do you set your power at?
I used 2 dedicated circuits for my audio equipment and I think my power is just fine. I don't get the sense that I need more filtering or regeneration. In essence I agree with Taters on this one.

In my shop I have all dedicated 20 amp lines with $200 Furutech outlets, and quite frankly I find good power conditioning mandatory.

I use the Running Springs products and I find them to make a huge difference in my display systems.

Sound stage width is improved, image depth is improved, bass tightens up.

Audience are good, but it does depend on the model you used, the higher end units with the teflon caps are much better,

I have never liked the PS audio conditioners, or any other reqenerator.

When using a power conditioner they are very system dependent and you also must make sure the piece you use has been broken in and warmed up sufficiently.

If adding a good power conditioner is not audible it may also point to a lack of resolution, elsewhere or something which is causing you not to hear it.

Again from my experience the differences should be quite obvious. I have purchased close to $40,000.00 worth of power conditioners for my shop, and I did have to purchase them, if they did not work I wouldn't have bought them.

For Mechans: The power supply of equipment utilizes mostly the peak of the sinwave. the more peaks, the more energy can be utilized..(this is not a technical explanation.. ust a lay one.. so do not crucify me EE dudes..)
Generally equipment can use nearly any frequency sinewave coming in to the power supply. though lower than designed for waveform will tax the systems ability to function properly. Higher has Zero detrimental effects (to a point)
Only a few 'digital' power supplies seem bothered by using a higher than normal incoming A/C frequency.
I first 'discovered' this reading some article in Stereophile, and the author experimenting with a PS Audio variable output. Which made me decide to search for one (only a very few of any regenerators can alter the output frequency at will) I lucked out and bought one off Audiogon close enough to go pick up.
The PS Audio P600 and P1000 can do the change but only if they have an optional board inserted. Which is no longer available. (so for anyone wanting to find one to play with, make certain it already HAS the optional board installed It was mostly advertised so one could adjust the turntable speed.. Seems too many questions were floating around so the idea of altering the Hz in general seemed to get dropped in PS Audio info pretty quickly)

I experimented with various frequencies and tried 60, 70, 90, 100, 110, 120. (the range allowed is from 60 to 120Hz in one Hz steps) I like 110Hz best for my digital stuff.
The one item which I own that does NOT like the juice Hz upped is a Behringer DEQ2496. So I have that on the other conditioner. (as mentioned, digital power supplies do not respond well. though digital in this case is ""digital power supply"", not the same as an ordinary power supply for digital equipment (sorry if any confusion in that mix up in terms)

So I owe my discovery to accidentally reading the right article in Stereophile.
Same thing with my favorite tweak, of stuffing the digital electronics with antistatic foam. Which also came from a comment in a Stereophile article. The black antistatic foam, (isulated with card or plastic so it does not short out the works, placed over and around digital circuits inside the equipment). The foam, grounded to the chassis lowers the noise floor and cleans up the upper frequencies sound a bit. Curious NO ONE seems interested in this tweak. But I swear by it. It really helps.

Audioracle,
If I find ANY home electronics dealer that would say opposite I'd be surprised.
Mechans,
Rectification of 100Hz is simplier than rectification of 60hz, so I'd assume that this equipment will improve performance. There are number of power supply designs that multiply wall frequency before rectification.

Audiooracle,

So I take it you like the running springs product over the Audience? Have you ever tried the Synergistic power cell or the Bybee?