Regretffully up for sale is my lovely Dude Preamp. Possibly the most musically detailed preamp ever build. This unit is about a year old and working perfectly. This one has the dual 6SN7s in the output stage enabling it to drive long interconnects and multiple amps. It also has the Mundorf supreme 10uf caps. Dual volume controls and source selector knobs. Truely a beautiful piece. However the asthetics pale in comparison to its captivating sound. See the reviiews and comments under audio reviews on this web sight. These don't cme up that often and ordering one can take months to get.