Any experience with Richard Gray power conditioners?

[recstar24]

Just wondering who out there has owned them or messed with them. Am starting to read up on power conditioners because I believe the power feeding my rig could possibly have a detrimental effect on the sound based on experience. Certain times during the day the rig can sound different, so I would like to keep it consistent, if not noticeably better.

[Spiug31]

Zerosurge or brickwall should probably be on your reading list.

http://www.brickwall.com/

http://www.zerosurge.com/

and this thread might be of interest http://www.head-case.org/audio_accessories/your_thoughts_on_power_conditioning-t193.0.html