I too have found that changing power cables into and out of the SDS gives a lift to the sound of my VPI HRX.
By some swapping around, I have found the best [IMO] is Nordost Brahma Power Cord into the SDS from the wall socket with no conditioner in between and Nordost Valhalla Power Cord from SDS to motor.
The SDS is positioned 30" minimum below the cartridge, similarly, I found moving the [various] ARC Phono stages that I have owned away from proximity of the T/T has improved matters. I am presently using an XLO Signature 2, 3.2 phono cable after originally connecting the HRX with the VPI phono cable in a metre length, having bought this to get a good position from my previous VPI TNT t/t, and then a Kimber.
I also tried Shunyata Anaconda Alpha's Power cables but could not detect any change.
By some swapping around, I have found the best [IMO] is Nordost Brahma Power Cord into the SDS from the wall socket with no conditioner in between and Nordost Valhalla Power Cord from SDS to motor.
The SDS is positioned 30" minimum below the cartridge, similarly, I found moving the [various] ARC Phono stages that I have owned away from proximity of the T/T has improved matters. I am presently using an XLO Signature 2, 3.2 phono cable after originally connecting the HRX with the VPI phono cable in a metre length, having bought this to get a good position from my previous VPI TNT t/t, and then a Kimber.
I also tried Shunyata Anaconda Alpha's Power cables but could not detect any change.