How to improve power supply?

Ptss - Don't get too wrapped on what is being used by NASA, NOAA, NSF, etc. We are talking about audio systems, not GHz telecommunication systems to Mars. The Plitron will dramatically outperform the kiddy toy power transformers in 90% of those used in preamps of the 90s and later.

Thanks Bomb. I don't want to start a disagreement but in my understanding regulation does not provide "clean" power. It provides a degree of stability, ie regulation within given parameters. I may not be up on the latest facts so I will do some research before commenting further. When I complain the PS is inadequate it is based on the statements by the products representatives when I bought the units new-- that the PS made the pre virtually immune to ac powerline disturbances(noise). Oh well, I will look into the info that has come into this thread and probably have more questions. I'm not in the least interested in technical aspects but a degree of self education seems helpful in this hi-fi / well , music listening hobby. Thanks for your input.

Like many other electronic components; regulators generate noise. A number of ways to address that noise have been discussed and tried, by hobbyists and companies. ie: (http://www.edn.com/electronics-blogs/the-practicing-instrumentation-engineer/4422750/Simple-circuits-reduce-regulator-noise-floor) (http://www.diyaudio.com/forums/solid-state/1437-reducing-noise-voltage-regulators.html) (http://www.belleson.com/comparenewclassd.php) (http://www.belleson.com/compareburson.php) (http://www.ti.com/ww/en/analog/tps7a30/index.shtml?DCMP=hpa_pwr_tps7a30&HQS=Other+OT+tps7a30-bt2)

Hi Rod. My biggest efforts have been to remove noise. Equitech balanced power, MIT, Furutech. All to "great" effect. Love that silence.

YES, Mr P: That silence reveals the truth of the saying, "You don't know what you've got, 'til it's gone!"