High quality AC turntable motor

I would agree with the others. I have recently upgraded to the Premotec motor from the Hurst, which had entirely too much torque. The Premotec motor runs smoother and generates much lower levels of vibration than the Hurst. The ideal motor would have just enough torque to avoid stalling.
Don

Kevin Carter of K&K Audio has a prototype PS that has two outputs with phase angle adjustment. The only thing holding him back from releasing this as a kit is the need to assemble one so he can write up the instructions. If enough people were to email him that might provide the motivation to finish this project. The price of the kit should be reasonable compared to commercial units and it should be sonically superior to all the single output PSs out there.

I have used a Crouzet motor and with the recommended phase capacitor it vibrates like a heavy duty sex toy. Since my turntable doesn't care about sex, it's not the thing!

I have tried a Maxon motor from Switzerland. It is a high torque motor but as people have suggested here it is not as smooth and noise free compared to the stock Philips motor on my Verdier.

The Townshend Merlin costs over £1200 UKP - and is essentially a mains sine wave re-generator. I contacted K&K - Kevins a nice guy BTW - his design, which is scheduled for next year, seems to follow the principle of the Rega P9 power supply that smooths out the power by angling the power into the motor to prevent the cogging. I am grateful for the feedback from the motor experimenters!

Whilst I understand that there is a school of thought about getting up to speed, and then simply maintaining it approach, I am beginning to be drawn down the high torque route. I am beginning to notice slight drag in very heavy and complicated passages on my current deck, which is why I wanted to use a higher torque option.