Speaker Cable Suggestions

Speaker Cables cannot "change" (for better) the audio program, but they can certainly alter a highly complex load (impedance) so that a listener might like the resulting sound better.

No need to spend a lot of $$ to get that however.

Unlike the woo-woo with interconnects, the alteration of sound from speakers with complex impedances by speaker cables is well understood in electronics.

Wow another useless cable debate. I am sure the bulk of this was no help at all to the OP.

the only help for the OP is to try different (inexpensive) cables from one of the 'rental'/return places until he finds something he likes

no way to predict what sound alteration will be most pleasing

There is always a lot of opinions on speaker cable. Lately in our audio club we have had some members experimenting with different cables including Clear Day, Grover, Western Electric 16ga, Acoustic Zen and many other brands.  A couple of us are using the Duelund 12ga wire.  I think it sounds excellent and it is very inexpensive as cable goes.  Just get some and try it and if your don't like it sell it.  In my opinion your room acoustics will make a bigger difference than any speaker cable.     

The goose says: "In my opinion your room acoustics will make a bigger difference than any speaker cable."

Bingo!  Clarity in a sea of confusion!