The Aurum was not so much a successor to the Standard arm as a better developed version of it.

Most notably, the 3 visually obvious improvements were the use of a larger diameter arm tube and the fixed headshell. Though this precluded the azimuth adjustment, the improvements to the sound warranted the decision. Slots were machined in the headshell to optimise cartridge geometry.

The third improvement over the Standard arm is less obvious; the  bearings cups were made larger

The needles were super-hard and prone to fracturing/chipping if knocked. By increasing the bearing cup size, the balls sat further down the needles and this made them more robust.

The final alteration was the inclusion of slots in the base plate to increase the scope of adjustment on the turntable.

Production ran for 18 months around mid 1984/1986.

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