RicEVS has a new product for speaker cables
The EVS Speaker rf filters
According to Ric make the sound more musical and more detailed. You hear more separation of instruments, more hall sound, more air, lowering of noise and lowering of edginess and distortion. You hear more micro details....string resonances.....lips smacking.....more of the wood sound. This is not subtle....you have not heard your system till you have filtered the noise coming down your speaker wires. Even at low volumes you enjoy the music more......just more real.