Unipivot tone arms


Help me Understand how Unipivot tonearms function  what are the advantages and disadvantages?

lstringfellow

Showing 2 responses by lewm

Like I said at the beginning of this thread, there are many modern tonearms that could be categorized as "unipivot", but the best ones are actually modified unipivots so as in one way or another to cure the inherent issues with a pure unipivot. Graham, Kuzma, VPI (with the add-on option), and I am sure many others are in this category. Results can be superb. But a pure unipivot, like the Keith Monks (which I also once owned) is passe’, in my opinion. Besides, the mercury bath contacts (Keith Monks) were a nightmare.

Most modern (meaning brought to market within the last 10-20 years) unipivots are not really unipivots in the original sense of the term, because most manufacturers have modified their unipivot designs to reduce or eliminate their capacity to rotate in the plane of the pivot, which makes the azimuth unstable. These modified Unipivots are also made less prone to "chatter" at the bearing point, by use of magnets, etc. As a result, the better modern unipivot tonearms, like the Kuzma 4-point or the Graham or a VPI with their add-on modification, are really excellent tonearms, but expensive.