Use as heavy and dense a material as possible. I would look at vinyl engine site and DIY audio sites for leads. I sold them years ago and they were very good, the bases were always their weakest point. I am a Star Sound dealer and have found that their threaded cones improve the VPI tables so I imagine they would do the same for yours. Slate would make a good base if you have a good source and someone to cut it.
Ideas on Technics SP-15 plinth
Hi,
I live in the UK and bought a Technics SP-15 turntable minus arm, PSU and plinth from a chap in Canada. I would very much like to either buy a Technics plinth or custom-make one from acrylic and/or granite as the deck is a real cracker and in very good condition for its age. Being a bit of a hi fi geek, and single, there is nothing to stop me having it as a project and the first thing on the list is a plinth. From what I can gather, once the deck is restored and a suitable arm and cartridge fitted, its performance is right up there with the very best. If anybody has any ideas or views on this please feel free to let me know.
I live in the UK and bought a Technics SP-15 turntable minus arm, PSU and plinth from a chap in Canada. I would very much like to either buy a Technics plinth or custom-make one from acrylic and/or granite as the deck is a real cracker and in very good condition for its age. Being a bit of a hi fi geek, and single, there is nothing to stop me having it as a project and the first thing on the list is a plinth. From what I can gather, once the deck is restored and a suitable arm and cartridge fitted, its performance is right up there with the very best. If anybody has any ideas or views on this please feel free to let me know.