I don't know. Audio Advisor gave my Chinese made Cambridge CD Player that 30 day satisfaction guarantee...I know it doen't make it any better, though.
It seems this guy's come up with something I would catalog as 'totally ballistic'. It's severely limited in input flexibility (switching is on the rear, and only two inputs). However, not at all on configuration (nine total setting combinations!). Very well thought of. Totally non Voodoo. Just not flexible...
Here's the link: http://www.decware.com/preamp.htm