Micro Seiki DD 40 Dual Tonearm installation

If you can’t find a Micro Seiki armboard adapter, an aluminum angle bar should do the trick.

Micro Seiki armboard adapter

I think it is not the best idea to add a 2nd arm to THAT TT

The DD40 designed with optional 2nd armboard adapter.

1. it would need to be mounted on the left side, thus backwards. I did backwards for my 3rd arm, but it is awkward at best. Beyond normal caution placing/removing LP’s is needed.

You did it anyway.🤔

2. it would be outside of the dust cover when closed, thus the precision arm always subject to dust, air-borne pollutants

A custom made over plinth dust cover is the solution.

3. while it could be a long arm, not likely, the primary arm’s length is limited. IF the left backward arm was long, that would move it further away from the platter, more room for your hands placing LP’s, so if you proceed with this project, think Long!!!

A removable armboard attach to the plinth is much easy to work with than drill holes on a plinth without removable armboard. Also, the DD40 has screw holes for armbord mounting, its can revert to original easily.

Actually, if you think Long (time) ask yourself if you would regret it.

Did you?

@elliottbnewcombjr 

I think you've spent a lot of effort to accommodate the 3rd arm on your table since it is not design for that.