Cables from TT to phono stage to preamp


This year I purchased a REL T/7i subwoofer, then a PrimaLuna Evo 300 preamp, a VPI Prime Signature turntable with a Hana ML low output cartridge, and a Solidsteel S4-3 audio rack. I spent a lot of money.

I currently have VPI tonearm cables going to my Musical Surroundings Phonomena phono stage (original model), and Audioquest Jaguar ICs going to my preamp.

I know my tonearm cables and phono stage are holding me back. I tested the Iridium and Clear Cygnus tonearm cables and like the Cygnus over the Iridium, and the Iridium (easily) over the VPI cables.

I have a Rotel RB-981 amp I bought back in 2004, Cardas Neutral Reference speaker cables, and B&W CM 2 bookshelf speakers on half loaded speaker stands.

I still love the CM 2s, and found that the Clear Cygnus helps roll off the highs a little which is beneficial to the sometimes too bright speakers.

What cables are you folks using between your TT and preamp? How important is it to change the cables from the phono stage at the same time as tonearm cables?
I’d like to get a new phono stage next year, and a dealer I spoke with suggested the Sutherland Insight, but I know there are a lot of phono stages out there and I have a lot of research is ahead of me.
128x128ctwith3
Here is what I have:
VPI Prime Signaure with Ortofon 2M Black cart
Shunyata Delta RCA cables to one of multiple phono stages that I am playing around with but will weed out soon:
Simaudio 310LP and 320S power supply
Pass Labs XP-17
Musical Fidelity NuVista Vinyl
from one of the above phono stages I have:
Shunyata Delta XLR cables to the preamp
plus Shunyata Delta RCA cables to a SweetVinyl SugarCube SC-2 and from there Shunyata Delta RCA interconnects to the preamp. 
The Preamp is a Bryston 17B3. 
Those Shunyata Delta cables are pricy, but the venom is doable. I’d like to stay under $600 per cable if possible.

Also, my dealer had me set the gain on my phono stage to 58 and the impedance to 240.
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@ctwith3 I started out with the Venoms and upgraded from there to the Deltas, where I will stay.