Dsremer,
"I have tried my P.S.Audio PW DAC 11 via the Balanced out directly to the M.L.336 and was impressed with the results, I do not want to take a step back the First Sound pre does a lot of things right.."
Theres absolutely nothing wrong with wanting to go balanced. Most of my components are. After reading your above post, though, I can't help but think that there is a lot more going on as to why you are hearing differences besides the PS Audio being balanced. The 2 units are very different from each other in many ways. I'm just suggesting that there are other factors that make them sound different besides being balanced.