The Acoustic Signature Grip Mk3 Record Clamp can be used with all Acoustic Signature turntables and other brands that have a long enough centre spindle. As some records wont sit entirely flat on the turntable platter sound reproduction can suffer! Due to the resonances caused by the stylus riding on the unsupported record. The Grip Mk3 solves this issue by allowing you to push the record flat onto the platter and locking it in place!