I do have a McIntosh C200 preamp, MC402 power amp and Shahinian Diapason speakers, not an easy load to drive. Fellow Audiogon member ljgj recommended that I tried still little-known LAT International's SS-1000 speaker cable, which I did. It's an astounding cable - deep, tight bass, excellent soundstaging, natural instruments and voices. ljgj told me before the cable was as good as many much more expensive ones. I found that to be true. Check out their website llatinternational.com and the reviews for their cables on audioreview.com. I support the enthusiastic reviews. Only thing is, burn-in takes a few weeks, but in the US you have a 30-day-trial period. This was, you'd even spend less than your busget.