gotog, chakster has mentioned the SP-20 a few times now. It may be a fine motor unit, I've never seen one. But depending on where you live, I believe they are very rare in the US. Also you don't find the backup such as a service manual at VinylEngine as you will for the SP-10/15/25.
If you do reach a point where you'd like to upgrade your SP-25, then either suggested mods to it or step up to a higher Technics or other quality DD such as Luxman, Kenwood, Denon, JVC, etc. However know that Denon and JVC can have difficult repair/restoration issues. But when working all reports are they are fine tables.
If you do reach a point where you'd like to upgrade your SP-25, then either suggested mods to it or step up to a higher Technics or other quality DD such as Luxman, Kenwood, Denon, JVC, etc. However know that Denon and JVC can have difficult repair/restoration issues. But when working all reports are they are fine tables.