halogen lighting?

Low voltage halogens provide great outstanding atmosphere lighting for a listening room, BUT, the step-down transformer that is a part of the inexpensive fixtures will make a significant amout of mechanical noise if the lights are set at a moderately dim setting. This isn't noise induced into your system, but it is still a distraction for critical listening. There is an alternative, however. If you go through a specialty lighting supply store, you can get better low voltage halogens, the kind you see in commercial applications like restuarants and museums. These use a remote transformer that can be placed some distance away from the listening position, to reduce noise. Much more expensive than the Home Depot variety, but if I had it to do over again, I'd go that route. Good luck.

To answer Ed's question...on inexpensive halogens, a small transformer is built into each individual lighting fixture, so there is no way to isolate the source of the noise from the source of the light. The Home Depot-type tracks are called "low voltage", but the the voltage running through the track is 110V. The step down occurs at the fixture. True low-volatge systems run 12v through the track, which limits the length of the track run due to voltage drop.