If its a big installtion read a dedicated theater I use rack mounted equipment or rack shelvs for consumer grade gear. I then use a FURMAN or PANAMAX line conditoner. Some of the MONSTER stuff isnt too bad either it seems to be built pretty tough for Monster Cable standards.

I do like the professional conditioners from FURMAN the best though. I did just complete a job using a realitively cheep unit from Numark, it did do a nice job.

VR Audio Systems LLC
Phoenix, Arizona
www.vraudiosystems.com