The motors are samarian magnet and run resolvers that I could not find any specifications on so I decided to go with new drives and motors. I have already purchased 900 watt Yaskawa motors and drives for the machine. I know 900 watt is a bit overkill but the 900 watt was actually much cheaper than the 500 watt set up I wanted on ebay. I used these same drives on my last retrofit and they are easy to setup and have auto tune. Next I need to get my mesa stuff ordered.