tho i've not tried myself to install separate circuits for my audio equipment (like sarah, i had an electrician do that), i have tackled a few jobs i might have done better, in hindsight, to have employed experts to do. the one task that comes most readily to mind involved my purchasing a scientific-grade air compressor to power my airtangent tonearm. i installed the compressor onto a hand-built damping stand and put that in a vented box that was lined with sonex. this box was then moved into a storage area about 40 ft. from my tt/tonearm. that space was also covered with sonex. i ran tubing from the compressor through a finished sofit, which required my using several 8 ft. lengths of pvc to "push" the tubing to a plate in the ceiling i constructed from a solid copper switchplate and various fittings. after installing a remote switch, pressure and flow gauges at each end, desiccant filters and other fittings, i ended up with a very cool air source that's completely hidden from view. once i get my basis debut 5 vacuum (gotta win some more consumer fraud cases that i take on contingent fee bases!), i'll "reverse" the airflow of my pneumatic system, which will allow me to house the vacuum pump where the compressor has resided. (i know this is pretty silly, since the basis pump is very quiet, but i'm not gonna let all my work go to waste). -cfb