I will ask a dumb question on power conditioners


....what is the difference between a power conditioner and a power distribution unit ???? I saw the site for these here on Audiogon and I noticed that there are in fact two types of units being sold. 40 years in this hobby and I understand power conditioners....but what is the difference and what are each used for ????
garebear
"DC sinewave " No such thing
It converts it to dc and then takes the dc and creates a sinewave
Thank you as the original OP - what comapnies / brands would be a good place to start for pasive line conditioners ????
The Blue Circle PLC (powerline conditioner) Thingee FX2 does a remarkable job of lowering the noise floor for a very reasonable price. And I see they've added a higher level unit on the website. (they're funny looking, but they work).

Their retailer is at
http://www.tlp-audio.com/powerConditioners.php

http://www.bluecircle.com/page151.html
Another way to go is to check out a used Furman Elite Series power conditioner. This is an active conditioner with surge protection. There are separately filtered outlets for analogue and digital sources; an important feature.
I've seen them sell for about $700-800 in the classifieds.