halogen lighting?

one alternative would be to use the low voltage lighting system but convert it to pure DC. Some home-brew technical expertise would be essential to accomplish this.

It's easier than that. I installed low-voltage baby halogens atop my window inside frames for dramatic soft lighting of my drapes, but at TERRIBLE acoustic penalty...WITH wall-wart 12v transformers. And yes, they DO radiate into the audio...even when not on the same dedicated lines. OTOH I have in-room incandescents that are dimmed by a normal pot and they're COMPLETELY quiet!
So for $6 just get a rotary or slide dimmer and control incandescent 115 v lights, and leave the low voltage or halogen ornamentals for non-audio entertaining. I'm still surprised at the difference in noise level. I don't even hear incandescent filament "singing", either, from the 40 watt candelabra-shaped bulbs, whereas those baby halogens make muy system sound like my old short-wave receiver!

I have the answer your looking for! We just finished remodling the den, which is where the audio & projection systems are located. My electrician promised me that the low voltage lighting (12 volt) he would put in wouldn't make any sound. Well, I went along with his suggestion, and he was right! He used a unit made by "Elco". I believe the modle number is EL1499R. The cost was just under $26 each at the electrical supply. Each unit has its own transformer, but I can't hear any sound comming from them, and neither can anyone else! The dimmer that we're using is made by Lutron, and is called the "Spacer System". Very cool dimmer; works off an IR remote, and can be programmed for 4 different lighting levels. Hope this helps! Ken

Ken, sounds like you're into h.t., maybe more than just stereo? I'm curious what your system is?
jb

I've been into high-end audio since the mid 70's. My "current" system is pretty much a full blown Cello system, complete with a pair of Grandmasters. During this most recent remodeling job, we ran 5 dedicated 20 amp lines into the den, and used the Cryo-treated Hubbells for the outlets - a huge difference in bass response! As far as the projector goes, I installed a Sanyo PLV-70 into the ceiling, and project it on a Stewart Firehawk screen. The quality of the projected image is awsome, but my true obsession remains two channel audio...