1. Thorens td115, dynavector cart; the output is low.
Which Cartridge? Could it be a "Low output Moving Coil" In which case you would need a stage..
2. Thorens td320, Shure cart; the outer part plater scrapes the top of motor pulley
Does this scrape the entire circumference? Or just one small location of the platter?
3. Technics sp15, have yet to try it out.