Power conditioner types

Out of six or eight different brands of power conditioner that I tried, the Puritan PSM 156 was the only one that made an audible improvement to the sound.  This was immediately noticeable, and better in every way.

Puritan's power cords are also nice too.

@sokogear  No, afraid not.  Given the relatively modest price (compared to some others) I just went for maximum treatment/filtration.  Depending on the quality of your incoming electricity, some say the 136 is plenty.

There's a long thread on the 136 over on AudioCircle if you want to read more about it.