I have an Orbe with the AC motor. Get one of these for $25.
http://www.amazon.com/gp/product/B000MMW0PY/ref=oss_T15_product.
It's cheap and you can run a LP with it to see if indeed you are running slow. Usually as a belt gets older it starts to shrink or harden and it causes the TT to run a bit fast. I used the Wally tools to test speed but the LP had a slight warp in it and caused a error in the read so I bought a laser photo tach and it worked great. If you can adjust your PSU your better off than me. The QC PSU has no voltage adj., so the motor pulley is what really decides your speed. I have two and one runs a bit slower than the other.
I agree that other things may be at work but it should show up on more than just a few LP's no matter what the cause unless its in the LP(?)
http://www.amazon.com/gp/product/B000MMW0PY/ref=oss_T15_product.
It's cheap and you can run a LP with it to see if indeed you are running slow. Usually as a belt gets older it starts to shrink or harden and it causes the TT to run a bit fast. I used the Wally tools to test speed but the LP had a slight warp in it and caused a error in the read so I bought a laser photo tach and it worked great. If you can adjust your PSU your better off than me. The QC PSU has no voltage adj., so the motor pulley is what really decides your speed. I have two and one runs a bit slower than the other.
I agree that other things may be at work but it should show up on more than just a few LP's no matter what the cause unless its in the LP(?)