These are extraordinary speaker cables that provide a clean, accurate, controlled sound with excellent, tight bass, extended highs and plenty of mid-range bloom. I've used them with various amps and speakers, always with excellent results. These are an earlier version of the Precision cables described in the link to DNM and are terminated with banana plugs.
I have 2 sets of these excellent cables, @ $75.00 each. Please note that each "set" is actually a pair of cables suitable for a normal stereo amplifier-speakers connection. In keeping with DNM's quirky design philosophies, however, these have to be split apart to the extent necessary to connect to your speakers and amp, therefore these were split for my purposes, probably about 8' at the speaker end and 3' at the amp. You can't put them back together, but you can split them farther.
I urge you to look at both the DNM link and at the Stereo Times rave review you can find via Google.
I will include shipping and Paypal fees at my price.