Newport Test Labs first tested the accuracy of the Music Hall Classic turntable’s rotational speed, which is shown in histographic format in Graph 1. You can see that the speed is accurate to two decimal places, at 33.33 rpm, as shown by the light blue dashed line at the centre of the histogram, which shows the mean rotational speed.
Wow and flutter means that the speed will vary slightly over time, but the variations in speed for
