Lespier, the peripheral ring I'm familiar with (a friend uses it) came with a mounting jig that centers the ring perfectly and then is removed before playing.
A $300-$400 turntable tweak
This is guaranteed to put a smile on your face.
Buy yourself a turntable outer rim-weight.........brand doesn't matter.
These are the metal ring-type weights intended to keep the vinyl flat at the edges just as a centre clamp or weight is intended to keep the record flat at the centre.
Now use it religiously on every record for 3 weeks.
After that time, throw it away and listen to all your records again.
The transparency, space and depth will all have now returned and you will once again remember why you love vinyl.
Buy yourself a turntable outer rim-weight.........brand doesn't matter.
These are the metal ring-type weights intended to keep the vinyl flat at the edges just as a centre clamp or weight is intended to keep the record flat at the centre.
Now use it religiously on every record for 3 weeks.
After that time, throw it away and listen to all your records again.
The transparency, space and depth will all have now returned and you will once again remember why you love vinyl.