Installing a Dedicated AC Line  The most important change made
to the system was one that held up the writing of my review of
the Mark Levinson No.23.5 power amplifier for several months,
such was its anticipated impact. Though my listening room is
well-equipped with wall sockets, there are actually only two 15A
circuits serving these outlets. Ever since I had converted what
had hitherto been our house's master bedroom into my listening
room, I had intended to run new circuits to it.  Somehow, there
always seemed to be more urgent jobs that needed to be done
around the house—new roof, new main drainage, new bathroom, new
windows, new stucco, etc.—but finally in the spring of 1991,
there was enough electrical work to be done that we managed to
attract the interest of a local contractor. ("Choosing a
contractor" is a phrase that, in my experience, is more true
turned upside-down: they choose you—if you can supply references
and show a willingness to both give them money on an unlimited
payment schedule and allo