Speed issue 2011-11-13 21:31:43 I'm not experienced enough with turntable hardware to know whether this is a common problem or not. It would appear that while I'm playing records, every now and then, the music seems to dip maybe by a semitone. Is this a common thing that can happen to record players over time? This is a Pioneer PL-300. What causes this issue? I'm pretty certain it's not the record.