An important comment about centre "weights" vs centre "clamps". 3-point/5-point centre clamps and tight full circle centre clamps act in a fundamentally different way on the vinyl record, compared with centre weights and gentle clamping mechanisms. All centre weights and clamps have the desired effect of coupling the vinyl record to the turntable platter. However tight active clamping has the undesired side-effect of stressing the vinyl, which audibly negatively affects the sound during playback.
Those clamps which have you spin the clamp until it gently grips in position do not tend to have this problem, but those which you push down hard and manually clamp tight are not recommended. The 3 or 5 pressure-point tight clamps are particularly bad in this regard. A centre weight, no matter how heavy, is not going to cause this problem. It is pretty easy to hear that my records sound better with my 1.4kg Nugget centre weight, while my Audio Technica 3-point clamp actually makes the same record sound WORSE than no weight/clamp at all!
This regardless of whether a ring weight is also being used.
Those clamps which have you spin the clamp until it gently grips in position do not tend to have this problem, but those which you push down hard and manually clamp tight are not recommended. The 3 or 5 pressure-point tight clamps are particularly bad in this regard. A centre weight, no matter how heavy, is not going to cause this problem. It is pretty easy to hear that my records sound better with my 1.4kg Nugget centre weight, while my Audio Technica 3-point clamp actually makes the same record sound WORSE than no weight/clamp at all!
This regardless of whether a ring weight is also being used.