Quote Originally Posted by jamie123 View Post
ive often thought when people say the platter rings like a bell how this affects normal operation?
unless of coarse your still flicking it with your fingers whilst listen,the truth is they do but try it with the rubber mat on and they are as dull as ditch water. discuss
I believe it's all to do with resonant frequency.

The lower the figure, the better. That's why Acrylic platters and acromat have gained popularity. They have very low resonant frequencies.