Get Power Conditioner -downgrade my expensive PCs?

Snofun3,

Bryston does not say "it won't make a difference" in reference to power cords.
Also, DBT fails miserably at proving audible differences when comparing amps of similar design and power rating. Are you saying you're imagining the superior sound of your Bryston amp?

Saffy,

I was referring to PC's that I've built.

It's the old 'weakest link' analogy. You really can't skimp anywhere in the power chain if you want your gear to give it's best.

IMO, finding a PC that is tonally neutral and has powerful dynamics and clarity top-to-bottom is not easy. Most of the tonally neutral PC's I've tried are lacking in dynamics and/or clarity, while many of the more powerful sounding PC's seem to have serious colorations.
Honestly, it wasn't until I started building my own PC's that I got a handle on what a neutral PC sounds like. With the huge number of possible combinations of conductor, geometry and terminations, the 'flavors' become a bit mind-numbing after awhile. I know I've personally auditioned 144 different combinations, and only about 10 percent seemed relatively neutral to my ears.
Of course, my experience has also taught me that getting cable fanatics to agree on what exactly is 'neutral' is a pretty tough gig. :)

Snofun,

Bryston states that they believe "filtering" power cords impact the 60hz AC current, therefore reducing the performance of their amplifiers, which implies that they do believe PC's make a difference, but that in their opinion it's a negative one. But since they don't specify what they consider to be a "filtering" power cord, it's a pretty meaningless statement. All cables "filter" based on their LC values. So either Bryston thinks that the LC values of their supplied PC's are ideal, or they're simply not making a thorough enough statement of their opinion for me to debate the facts.
I could take two of Bryston's supplied AC cords, and cryo treat one, and even you could hear the difference, if you bothered to listen. So is Bryston wrong? In my opinion, absolutely.
As for Pass Labs; I don't know what they have to say about PC's, and I doubt debating their opinion would change anything, so I won't bother.
As for my comments about DBT testing of amps, I was simply referring to the fact that there are those that believe that any two similarly spec'd amps sound the same, and that DBT proves it. And since you're indirectly advocating DBT, I just thought you'd like to address the issue of why you bought a Bryston amp, when you could have bought a Crown pro amp with similar (or better) specs for far less money. Did you buy the Bryston because you believe it sounds better, or just for the warranty?

Snofun,

I never "degraded" Bryston in any way. It seems your intent is simply to mock those you disagree with, rather than have a reasoned debate, so I won't indulge you.
As a parting shot, I'd just like to remind you that DBT does not prove that no difference exists, only that the difference (if any) is beyond the sensitivity of DBT testing.
Enjoy the lights on your Bryston.