I am curious about line conditioners.

Greengroup, may I suggest you do a little diggin' around in some of the forum archives using the search feature. Lots of good stuff in there for a quick crash course. Search tech for 'vans evers' 'monster' 'tice' and 'chang' to get yourself started.

I'm sorry, no need to goto tech first just type it in. Also try 'power' and 'power conditioner' I did the very thing I'm suggesting to you just last night.

I am amazed with my PS Audio P600 for my Pioneer HD-710 and front end equipment. Everything has more definition and placement. I did visual testing with no sound and only after a few comparisons did not want to watch without the P600. I have owned the Tice power block and others but found they were dispensible. This is what I always wished was available to the audio/videophile for years. Also using a power plant seems to let the equipment come through and not add any of it's own sonic signature to anything.