No the AC motors were mounted in a housing attached to the plinth. I could simply change the motor and PSU but it seems like a good opportunity to introduce the standalone motor housing as well. I have an additional plinth that will allow this. So when my tax rebate cones through after April it will be one big change. AC motor. Standalone motor. Two-part suspension posts. Pete's pylons. Ceramic ball-bearings in the posts (probably not the main bearing as I have heard too many stories of cracking). Arm plate decoupling kit (for my SME 309). All of this I will ask my dealer to do for me as I do not like messing with expensive cartridges and arms. Fat fingers, limited time and patience. The HR PSU, I might leave for a little while just to see how much difference it makes.