To add my 2 cents. I just talked to Guy Hammel (owner) of Placette because im interested in buying a new system. He is very very insightful and knows quite a bit about the difference of types of pre amps. Everything makes sense from what im hearing about these pre amps. I'm also considering tube pre amp ran in front of a good solid state amp. But after reading about these pre amps and actually getting in touch with Guy on the first call today was great. I just might have to try it. Also to add, some companies that sell their equipment direct to the consumer and they are smaller than the big boys have the tendency not to answer emails very fast because they are busy building awesome equipment. Hope this helps.
http://www.placetteaudio.com/History.htm
http://www.placetteaudio.com/History.htm