I wouldn't, and in fact, i think Lamm recommends against it. (You might check his website, i seem to remember something about this). I have a bunch of Richard Gray stuff, including the 240 v transformer and his large multi-out line conditioner for my big video system. The Gray products have performed wonderfully in that set-up, I'm not sure it will sound as transparent on a high resolution audio system. Why would you need to do this anyway? Funky AC?
Yep, just checked. Take a look:
http://www.lammindustries.com/faq/conditioner.html