Use W3103 for my Wharfedale speakers and about to swap in W2549 interconnects gathered on-line from several assemblers who offered my various oddball specs…3 ft RCA to 1/4” jack, pairs of 2ft RCA, and a three spade REL cable. FWIW, I believe in cables to the extent that Mogami and Canare seem agreed to offer value as low noise studio and road gear suppliers. My ear is decidedly not golden enough to appreciate the highest end connectors but 45 years in radio and backstage outdoor festival production has tuned me in to the basics of clean signals, good grounds, the value of amp overhead and the reality that good speakers are a must to enjoy music fully, LOL