Mike - I will be very interested in your findings. I currently have a VAC Renaissance 2 (modified by VAC) and had an Allnic L3000 for a while.
Switching preamps in and out
I have three reference preamps in house. I need to decide on which one I like best. My question is: Do I need to power preamp,source and amp off before switching IC's to the next preamp? Is there a more efficient/faster way without putting any components in danger?