Speaker Cable Upgrade Path Advise, Please


I have a McCormack DNA-225 (Ensemble Megaflux power - BD racing cones), Kora Eclipse preamp (Harmonic Tech Proac 11 power - Ensemble points), PSB Stratus Goldi speakers. Using both digital (classe CD) and analog (Nottingham TT)sources. Harmonic Tech TruthLink interconnects.

Initially I was using 8ga. Monster speaker wires until I was given an 8' biwire set of Cardas Crosslink cables as an "upgrade". Frankly, the wires sounded better. To say the Crosslinks (120 hours on them) are BRIGHT, is a gross understatement. I have been waiting to buy speaker cables that complemented what I like - crisp highs, to be sure, but also "mellow" midrange and thumping, tight bass. Any suggestions as to 8-10' biwire speaker cables in the $500 USED price range for my situation and setup?
4yanx
My favorite is the Blue Circle BC92. An 8 foot biwire pair lists brand new for just under $500.
I probably should qualify my comments about the Crosslinks a bit. Yes, they are the bottom of the ladder in Cardas. But, they do provide surprisingly excellent soundstage and good imaging. The midrange is good, but the highs are stratospherically high and the bass veiled and muddy - at least in my system.
I have some Kimber 8TCs and they sound very good compared to the cheap cables I have used in the past ! And also a set of Kimber KCAG for your cd player and amp to preamp connections should get you back seriously into the NEUTRAL ZONE!!!!!!