Simplifying my main rig and looking for cable suggestions

I have built a second system that I seem to be spending more time with.  Much simpler and cost effective, but in a much larger room that presents everything in better scale.  My McIntosh rig is in a highly treated but very small (15'6" x 10' 6") room and although it is very good....the room is highly restrictive simply due to size.  I plan to replace the MC75's with a single MC275, replace the two box C500T with a C2700 single box, run a smaller REL with Harbeth P3esr speakers.  Looking for cabling suggestions....something with the openess and focus of Synergistic Research without all the grounding wires.   Possible it may end up being the SR lower level cables that don't require grounding but was looking for suggestions.  I am running Harbeth Compact 7's in the larger room and expect to move up to Super HL5+ or 40.2's.  I really like the Harbeths, not quite as refined as the SF's but IMO, tonally superior.  They are both very good at imaging.
Thanks

I would look at the UP-OCC coper cables from Zevfino or if your budget extends upwards, InAkustik

Both companies use a more advanced cable geometry for improved  performance and sonics

Regards - Steve

+1, Zavfino Cables

https://zavfinousa.com/

going from audiophile grade cables to generic or pro-grade cables will help to downsize and cut cost without compromising the rest of quality.
Mogami is for interconnect cables and Canary is for speaker wire can be found in most of pro-gear retailers such as fullcompas.com, musiciansfriend.com, zzounds.com, bhphotovideo.com