I agree that you should run a quad shield RG-6 coax line. I just though I would mention that directly connecting an antenna or cable connection to your audio/video system could have disastrous results without some kind of surge suppression to protect the components. You may also create a ground loop that will cause an annoying hum. I recommend the Monster Power series from Monster Cable. The HTS1000 or HTS2000 will provide protection for all your equipment. http://www.monstercable.com/product_info/infosheet_mpwr_hts2000.html
Twin lead or coax for downlead from FM antenna?
I have about a 25-30' run from my attic antenna to my tuner. The antenna has twin lead (300 ohm) output and the tuner has a coax only input (75 ohm). I can either use twin lead and a transformer at the tuner end, or put the transformer at the antenna and then run RG-6. Any idea on which would be better in terms of signal loss, noise, and longevity? I understand that these criteria may be mutually exclusive. Tuner is a Yamaha T-85 and antenna is a Winogard X type omnidirectional. I do not want to fuss with a directional/rotor set up.