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What's causing the highs to be rolled-off?

I finally achieved the fullness, detail, and bass-weight I want from my system.

My system:

Blue Circle BMPH integrated-solid state /Audience PC (to FIM outlet)
Modwright Sony 999ES /VH Audio Flavor 4 PC/ Furutechs
Raytheon tubes
Acoustic Zen Matrix Ref II (single end)
PS 9.0(power supply for Modwright/ tube rectified)
Black Sand Violet V1 PC
Raysonic CD 128 (VH Audio Flavor 4)Wattgates
EH 6922 tubes
Acoustic Zen Matrix Ref II (single end) and Blue Jeans XLR
PS Audio Premier /PS Audio Statement SC PC
Reimer Wind River GS speakers
Acoustic Zen Satori cables
HSU vtf 2 mk2 sub / FIM outlet/ PS Audio Ultimate Outlet
Earthquake Supernova Mk IV sub

Both my sources are connected to the Premier. BMPH to the wall. The problem is the highs are rolled off. What do you think is causing this? A few days ago I cleaned the Audience PC connected to the BMPH with deoxit- I wiped it off but did not use anything like alcohol to clean off the deoxit. Could that be causing roll off in the highs? Or could it be the PS Audio Statement SC power cord which just finished break-in after 2 weeks of playing. I'm considering trying a DCCA cord on the Premier in place of the Statement SC.

Thanks for your feedback.
foster_9
tvad
9,467 posts
 
I will definitely be keeping the Premier however. I'll experiment with other power cords for now. If the Premier is the problem, I'll eventually uncover it. Fellas, thanks for all your advice.
Foster_9 (Threads | Answers)

It's quite possible that one component plugged straight to the wall with the remaining components run through the PS Audio conditioner will produce the optimal configuration.

Why are you adamant about keeping the PS Audio conditioner? There are other regenerators available that might prove better (Equitech, ExactPower...).
foster_9 OP
1,610 posts
 
Why are you adamant about keeping the PS Audio conditioner? There are other regenerators available that might prove better (Equitech, ExactPower...).
Tvad (Threads | Answers)

Not adamant if it turns out the decreased high end extension is the fault of the Premier. If that turns out to be true, I'll likely move on to some other power device. But for now, the upside of the Premier is worthy of consideration. I've only had the unit for a little over 2 months. It's too soon to make a decision without experimenting more. By the way, the upside so far with the Premier is increased detail, midrange resolution, and dynamic power. And at the price I purchased it, it seems too good to blow off yet.

It's quite possible that one component plugged straight to the wall with the remaining components run through the PS Audio conditioner will produce the optimal configuration..
Tvad (Threads | Answers)

My integrated amp is connected to the wall- 2 two sources with the power supply are all that's connected to the Premier-oh, I forgot about 1 sub! As always, thanks for your thoughts Tvad.
tvad
9,467 posts
 
Try connecting your sources straight to the wall (one at a time).

It could also be that the output tubes in the Modwright need to be replaced.
foster_9 OP
1,610 posts
 
I thought of trying Modwright with the T Sols I have again.
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