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Trying to eliminate hard upper midrange

I am seeking advice to eliminate hard upper midrange glare. I spent alot of money and the sound improved, but the glare is still present. Is there something wrong with my set up, or etc? My systems is as follows:

Counterpoint DA 11.5 transport with Shunyata King Cobra.
Sonic Frontiers SFD 2 MK II DAC with Shunyata Black Mamba.
Sonic Frontiers SFL 1 Signature Pre Amp with Shunyata Viper.
All above components connected to the PS Audio P300 with a Shunyata King Cobra attached to it.

Bryston 7B ST Mono block with PS Audio Lab Cables connected to two Ultimate outlets which is connected to XLO Type 10 powercords to the wall outlet.

Speakers PSB Stratus Gold, placed 3 ft away from rear wall 2 1/2 ft from side wall, room is 15'wide 21'deep
8 1/2tall. Listening distance is 9 ft away from speakers.

Cables:
Digital - Illuminati D60 - BNC and Illuminati DX-50 - XLR
Interconnects - AudioQuest Diamond X2 - RCA
Speaker Cables - AudioQuest Dragon to highs and Clear 3 to bass.
All Cables are raised by ceramic tiles.

Brights star foundation platforms, tip toes, for each component sitting on a Stand design rack, set of room tunes corners, side walls and tune stripes.

New additions will be XLO limited edition XLR digital cable and Siemens CCa tubes for SFD 2 MK II. Will be here shortly.

Very fraustrated. Any suggestions will be openly noted, thanks.

bowlerds

Showing 1 response by whatjd

whatjd
1,139 posts
 
Do you have cable television in your home? If you have a single family home and can find where the cable is connected to the outside of your house, check how they have grounded it. If the cable has a ground wire, usually green, going to a conduit pipe..there is a chance that the cable feed has placed a DC voltage on your system. The easiest way to check is to disconnect the cable altogether..meaning at the outside of your house disconnect the 75 ohm coax and take off the green ground wire from the conduit...then listen..
if this is not the case or you do this and nothing happen, ..then you have other concerns..but if it does help...then get a qualified electrician to ground that damn cable feed to earth and make sure your home AC is properly grounded.. try to find an electrician that knows hi-fi.
P.S. You have way too good of a system, set up well for it not to sound pretty damn good.
To be clear..I should say that, in most cases, what the cable feed is doing is placing a DC voltage on your homes AC ground.
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