Hello Thomastrouble! Think about professional installations. Almost always, the control board is near the back of the venue (hall, theater, auditorium, church, stadium) and the amps are very close (just a few feet - eliminating worrys about speaker cables) to the speakers. Balanced cables can run hundreds of feet between the control board and the power amps. An industry standard three conductor (balanced) sheilded cable from Belden is normally used to make the long distant runs. Think about microphone cables in performace locations. Tiny signals (about the same level as a moving coi cartridge) are routinely run for very long runs to a controll booth in the rear of the place. There is a good Chinese copycat cable available from Parts Express if $$ is a problem. You don't have to spend huge amounts of money for those cables. I have set up sevral auditoriums and assure you that things are normally done in the way I have described. The best cables from Guitar Center should be fine. Don't spend over $10/foot, including connectors. Cables are easy to make if you can solder. Happy listening!
Cables from amp to preamp or longer speaker cables…
So today I was in the room that I’m setting up for dedicated listening. Speakers will be at the front of the room and sofa will be at the other end. I dug out a pair of expensive speaker cables I had from many years ago and discovered they are only about six feet long. This would be ok if I had my rig set up behind the speakers but I want to sit on that sofa at the far end of the room (12 feet away) and have my Benchmark DAC 3 HGC beside me so I can plug headphones in occasionally……do I buy long speaker cables (probably expensive), or would I place my amp behind the speakers and run long cable from that to the preamp beside the sofa and if so would this long cable create any issues?