i presently use 4 power-amps - 2 bridged adcom gfa555's driving my 4-ohm subs, & 2 electrocompaniet amps, biwiring the monitors. i was using a tripplite conditioner which keeps the woltage at exactly 115v regardless of what's happening in the outside world. i was using this 20amp, 2400v unit not to get better sound, but to protect the equipment.
well, after hearing the pros-n-cons of power conditioning, i replaced it w/a generic 15amp 1875v power-strip - *no* conditioning whatsoever, yust decent-quality 3-prong plugs. also a whopping $3 from mcm electronics. well, the sound improvement was *not* trivial. even the wife noticed.
but, i don't like running the equipment unprotected - even tho, for the most part, the power quality is good, we get strange surges & dips every now-n-again. so, i purchased a couple of those vansevers *unlimiters* that a-gon's steve bruzonsky has adwertized. i was hoping for *nothing* when plugging my amps into one - i yust want protection w/no penalty! :>) well, the werdict's still out, as i yust got 'em this afternoon, but for sure, one unlimiter doesn't muck-up the sound of the amps - it mite even make it a li'l better. mebbe some double-blind testing is in order! ;~) certainly, some listening w/familiar materials is in order - it's only been latin/jazz/world on the tuna tonite.
so, the one unlimiter will certainly remain in the system - i cant see affording the two ps1200's needed to power my amps, anytime soon! :>) as for the 2nd unlimiter, i haven't decided whether to use one each for two amps (mike v/e sez this *will* give a sonic improvement), or to yust use the 2nd for my source components, which are also plugged into a tripplite. i don't tink the tripplite's obvious current-limiting properties are degrading my source components, but, until i try...
doug s.