I don't know if the vacuum clamp is retrofittable to any table, but, it is the other great option on Basis tables. The vacuum holds the record very firmly to the platter which dampens/drains vibrational energy from the stylus tracking the groove and prevents that energy from feeding back into the cartridge. This improves the clarity of the sound. The most obvious difference that the clamp makes is with how much it supresses the effect of clicks and pops. Clicks and pops are very momentary events, but, with some tables/arms, the sonic effect is more obvious because of ringing (resonance) that is not quickly dissipated. Basis tables, particularly with the vacuum clamp, substantially minimize such ringing from clicks and pops.
Perhaps, the downside of such good resonance control is that Basis systems tend to sound "darker" and not as lively as tables that ring more. I can see why some listeners would prefer tables that sing a little more --this really is a matter of taste and system tuning. I heard a Linn table with the Naim ARO arm in a system that normally featured a Basis 2500/Vector 3 setup. The Linn/Naim system did sound livelier and more exciting in a system that needed a bit of perking up. But, I am not sure that, even in this system, I would like the extra liveliness in the long run. In some respect that liveliness was artificial and clangorous.
The point I am making is that choices still come down to matters of taste and system matching and that there is no absolute "best."
Perhaps, the downside of such good resonance control is that Basis systems tend to sound "darker" and not as lively as tables that ring more. I can see why some listeners would prefer tables that sing a little more --this really is a matter of taste and system tuning. I heard a Linn table with the Naim ARO arm in a system that normally featured a Basis 2500/Vector 3 setup. The Linn/Naim system did sound livelier and more exciting in a system that needed a bit of perking up. But, I am not sure that, even in this system, I would like the extra liveliness in the long run. In some respect that liveliness was artificial and clangorous.
The point I am making is that choices still come down to matters of taste and system matching and that there is no absolute "best."