I've made a number of custom length IC's using both Mogami and Canare microphone cable with either Canare or Vampire RCA's. The bulk cable and connectors are very inexpensive when bought from one of the vendors like markertek.com and soldering up the connectors is quite easy even if you don't have a lot of experience. My impression is that high-quality microphone cable is what most vendors use as the basis for their products.
Building your own cables is a great way to free up cash that could make a bigger sonic difference applied somewhere else, or be put into buying more music.
Building your own cables is a great way to free up cash that could make a bigger sonic difference applied somewhere else, or be put into buying more music.