I have the Monster HTS2000 for 6 months now. Once the unit is burnt in (2-3 wks), it does not degrade the sound. Now my system sounds the same with or without it. I use as a surge protector and to have a peace of mind. For $125 from globemart.com, that's is not too expensive.
Bargain power conditioners
Does anyone have any experience using a power conditioner made for computers (ie: the APC Line R 600 which cost around $150) with a high end audio system (front end). It seems to me that these might provide a similar level of protection and enhancement for a fraction of the cost of an 'audiophile power conditioner'. Thanks.