I am using 6 feet of DH Labs Q-10 cables between my 3BSST and my ACI Sapphires. These are the speakers that ACI uses to voice its speakers and they work very well. I was using 12 guage Radio Shack copper strand wire (well Radio Shack calls it audiophile), and the Q-10s really took it up another notch - much better detail in the mids and punchier bass, with sibilance reduced to almost zero. One thing I did find with the Radio Shack cables - the shorter the better. I was able to get better performance out of these by reducing the length from 15 feet to 8 feet. The difference was noticeable, although nowhere near what I am able to get from the Q-10s.