Hey Tony,
I have 2 sets of cables that I might think of letting you try. Both are 8 ft. in length. Cerious Technologies Graphene Extreme and Amadi Maddie Signature. Both of these have matching jumpers, if needed. The CTGE’s would not be very good replacements in regards to NOT being thick and pretty stiff, not to mention, heavy. But they sound very good with more meat on the bones sound. The AMS are pure silver and very flexible. They have great detail with no harshness, unlike what you may have heard about silver cables. Both cables are very dynamic. The AMS has defined and textural bass, but the CTGE have a more organic sound. The AMS sound is more beautiful and slightly clearer.
I now have Clarity Cable Organic SCs which were much more expensive than either of these. The CCO’s are my end cable in my system and I recently compared them for several weeks against both the highly regarded Cerious Technologies Graphene Matrix and the new Silversmith Fideliums. Both of these speaker cables are outstanding sounding in other systems and also in mine. The CCO’s are just better in my system--very live sound and compared to CEO's most other cables will sound thin in comparison.
I have VMPS RM40 BCSE w/ MLS cabinet speakers that are very detailed, dynamic, and fully adjustable to any room to make them sing. I'm just about done with my dedicated room in the basement second and final rebuild. I needed more room for record and CD storage now way in the future, and I have now treated the room with quite a few things to make it sound even more real, without being at all bright. It even has built in corner bass traps that are proving to be quite good and much less expensive, but are work extensive. The rear corners traps are huge but will be hidden behind the four 7 ft. tall cabinets I still have to build. I say this because you stated that your room sucks, so I wanted you to know where I'm coming from.
Bob