Summary: I thought I would take a risk with this turntable after reading the warnings from the other reviews about the variations in the speed of the belt drive. This causes noticeable changes in the pitch of the recording making it sound like your guitars or singing are out of tune, and is more noticeable towards the end of the record. You can actually see the strobe dots speeding up and slowing down! I have sent mine back to sony for a refund.
Summary: My PSLX350H turntable exhibited the same type of erratic speed that previous reviewers have noted. It ran well for about five minutes, but after that period, it was simply impossible to set a constant speed using the "strobodots" no matter how hard or often I tried. It seems pretty obvious that there must be some consistent defect in the motor or the control hardware, at least in examples coming to market in the past couple of months.
Summary: I found exactly the same situation that the previous reviewer. For two weeks this turntable performed flawlessly, But this passed week I noticed significant variations in speed. I contacted Sony and they notified me that I am eligible for a refurbished replacement, although they currently have none available. They indicated they would contact me with other options once I ship the unit back to them.
Summary: The Sony LX350 sounds absolutely great, but it has wide variations in speed that result in significant changes in pitch, even within a single 3-minute song. I could actually hear it slowing down and speeding up. Belt drive turntables are prone to drift, of course. My 25-year-old Dual 506-1 has a strobe that shows speed variations, but they've never been audible.