[rec.audio.high-end] Power For Audio Systems

KLUDGE@AGCB1.LARC.NASA.GOV (06/28/91)

   The major problem that you have is voltage drop from the line to the amps.
Until you cure that, any supply regulation isn't going to do a bit of good,
because you'll have line sags that the regulator won't be able to do anything
about.
   The first thing to do is to have a seperate 30A circuit run for your amps.
Have a license electrician run a 12AWG line from the circuit breaker box to
a single outlet near your stereo.  He'll probably charge about a hundred
dollars to do this.  You can do it yourself if you have some experience in
household wiring; it's not difficult.  
   This will reduce a lot of your problem.  You'll still have the problem
of resistance along the drop to the house and within the circuit breaker box.
Probably the new breaker he'll put in will help a lot, but if you have less
than 120A service to the house, it would be a wise idea to have the power
company drop a second line into the house for the stereo, and have a single
breaker panel attached to it for the circuit you had installed.  An
electrician will charge about a hundred dollars for this again, plus whatever
the power company charges for the drop (which could possibly be free, 
depending on the company).
   You will notice a very dramatic improvement in sound, if your house
wiring is like that of most older houses.  It's well worth the small
investment.  Not only that, but your fridge compressor will last longer :-).
--scott