This bring me to the final part of the TD160 mechanical changes.
After fitting the LP12 springs and achieving a good bounce the sound was still lacking bass weight what was there was very good.
A bit more experimenting with the LP12 spring and I found they had an optimum point were the whole sound just fell in place.
So this is the solution I came up with by adding a mass ring around the main bearing this has allow me to tune the suspension for the sound I was looking for.
Compared to the original Thorens springs and the un-optimized LP12 spring adding the mass around the bearing reduced the torsion rotation.
Final set-up of the underside.
I was taken aback by the effects this had on bass guitar and drumming detail and it wasn't just about bass
every aspect timing, pitch and dynamics had been transformed, it was like a veil had been removed from the sound "I like what I'm hearing".
This was the TD160 Super that I brought along to the MiBO 2016.
There will be a part 4 & 5 but for now I'm just going to enjoy the sound that it making.
Sharif.