Just a quick update... I tried an Einstein "the tube" last weekend. It was fantastic. Full, tight bass. Imaging left to right and back to front much better. Its got a 50ohm output impedance. That pre-amp is the best I've heard. Its an option but very expensive new.
Now to try and find a transformer coupled design with 600ohm output to see what that does. More findings as I have them.
Now to try and find a transformer coupled design with 600ohm output to see what that does. More findings as I have them.