I have a Spectral DM5A with phono. The phono only is missing bass completely. Have no idea what passed away. I have no schematics to test and send to a lab for repair. Maybe the best is to send it to some knowledgeble for repair. Who does this for vintage spectral preamps? ANy reference please...
I know it might sound the 3billion dollar question. I just happily found a DMC-5 preamp that I mate with a totally different power amp (First Watt transconductance for full bandwith speakers).
Do the MIT/Spectral synergy started already at the DMC 5 Time? If so would any MIT current product...