i am considering a stereo 70 myself. i will only buy an original, stock stereo 70. if i want more "resolution", i'll buy another amp.
why take an orange and turn it into an apple, when you can buy an apple ?
Agree 100%. I have a completely UNRESTORED ST70 in pristine condition. It makes my (restored!) Quad ESL 57s sound incredible.
If you don't like the original, get a different amp.