Sota Star Sapphire suspension question


Hey all; I picked up a beautiful Sota that has all the upgrades I would want. I'm coming from a VPI Scout and setup for the Sota is quite different. It has a ET 2 Arm. I have 2 questions, but if you have any comments please share. Initially I had the rubber feet screwed all the way up "locking" the sub chassis. I figured out I had to let the chassis go free. The arm board/arm side is lighter then the left motor side, is the where I load it up with lead to balance? Also, I tried my Benz SL and no matter what tracking force, the angle/weight are too heavy and distort my needle so I went back to a Dyn 20. Any thoughts on that. Also, I get no vacuum from the vac unit, I looked inside and it's clean but nada. Any thoughts. Thanks in advance. Jack
fz1jmp

Showing 3 responses by fz1jmp

Wow! My deepest thank you for all the information. I have to say I was a bit frustrated with initial listening, however it seems that its always something I did not do right to this point. Initially I still had the stryo locking the legs to the sub-chassie, so it was not floating. I did use Tonywinsc advice, the sub chassis did lean heavy on the left as you said and I was able to balance with lead.
Issue 1 - it seems the "weight" of the arm is too much for my Benz cart, even with the VTA in the highest position and no tracking weight, the needle was bending. I took that off and put on the Dyn 20 and it sounds pretty good, but I was looking for fantastic and its not there yet.
Issue 2 - the vacuum pump. I do hear it working when I have it connected to the table, and I can feel it working harder when I turn up the vac level. I did open the unit (its in a all black wood case with silver face) and saw nothing odd. I see 2 hoses, 1 from the pump deep in the back, going into a little air container and then a hose coming out that should have suction. Its a tight space and I was worried about doing damage,
Thank you again and any other suggestions would be very welcome! Happy NY !!
Thought I would add an update. First I would like to thank Bruce Thigpen from ET for writing back to me. It always blows my mind when someone who I both admire and respect take the time to give me advice and suggestions. Here is a guy who I consider a genius in the field of audio and he takes the time to get back, sweet!
Second, as usual, its my general stupidity that always does me in. I had nothing but the old metal fulcrum type of tracking force weight measurer. When I use that and put down the arm, it was seriously distorting my needle. When I did it but sight, so I made the arm neutral, then tacked on slight weight, not only did the needle not bend, it sounds great! I must not of tried that yesterday and I was just so frustrated I didnt think of it. I think so many things can be tweaked, I was overwhelmed. So I took a breath, slept on it and besides the vacuum not working, all is well. I did not call SOTA, I figured I would wait for the 2nd.
Jack
Manitunc; When I put my finger over the hole, with no hoses connected and the unit on and the vac set all the way to the right, the highest suction, I don't feel anything. I even tried cotton threads and no movement from them either. I opened up the vac and its very clean, all the hoses look good, I hear something happening, but no suction. I do have the rubberish spindle cap, do you know if this would use the reflex cap as well? Regards Jack