External motor’s connection with the speed of my t

Oh yah, A PS Audio Phono Stage, with Colorado XLR interconects

By "adjust the motor" do you mean physically nudging it to keep the belt taut? That's what Dan (and I) took from the wording of your original post.

If you have to do that every day it's not normal. Once my motor is set up right it stays that way for weeks, or until I bump it by mistake! ;-)

It's not unusual for a new drive string to stretch a little from use, but not every day.

A visibly or audibly vibrating motor is not good. I would ask other AS owners if theirs do that. If the table is new, I would report it immediately to the dealer and to AS. You should be covered by the AS warranty and the dealer may have their own refund/exchange policy. The latter may have a short time limit. Don't miss that window if there's any chance you'll need it.

Thank you! that is waht i needed to hear.

just another idea, i use mapleshade isoblocks broke in half under my motor, three pieces, the rubber grabs the maple shelf for a good grip and also isolates very well, JMO

I use the larger wood 'table from AS. Near as I can tell, the motor has not moved a mm since I set it up. However, this is a much larger motor than the smaller wood model you own. I can tell you from experience with an outboard motor on a Transrotor Sirius- that I also own- that a level surface is critical to proper performance. For a whle, the motor was set back from the table on a surface that was app 3 degrees sloped. Speed consistency was a complete mess. I don't know that you need a base, but try to make sure that the motor and 'table are at least on a flat surface.

Good Luck,

Marty