Setting up your Rock 7: (the relationship of motor to platter, IE: a starting point.
I write this based upon my experiences so far...
What I find, sounds the best, based upon my trying different motor heights vs, platter...
You may be wondering, WTF? Well, this does make a big difference my friends.
I've tried several motor heights vs it's relationship to the platter. In every mode, there was A difference. (You may prefer one to another). I'm just reporting that a difference is to be had via these (two relationships).
For those of you who may want to ascribe to my personal best..here you go..
Once you've aligned the motor housing with the platter and the belt is riding in the center of the sub-platter, and the belt on the pulley seems to be slightly above the conical part of the pulley.. you've come (very far).
Now on to the best sounding setting: Assuming you have a visual "sight line" in relationship to the underside of the platter to the top of the pulley...the top of the pulley should be ALMOST level with the underside of the platter. Maybe VERY slightly above or VERY slightly below.
If you've achieved this, you're going to hear THE best sound. Simple, right?
In theory yes, in practice, it takes a little more involvement. Some may think, that I'm not serious,...I ask those, this.... "You want me on that wall... you need me on that wall"..
Happy listening