Kuzma 4POINT 110630 - Manual (Page 3)

General description :
This differs from other arms by incorporating several unique features. The zero play bearing
is configured on 4 points. There is very precise VTA adjustment and, despite a longer
effective length of 280 mm (11 inches), fits the standard mounting distance of 212mm ( for 9
inches arms).
The heart of the new construction is a unique 4 point bearing. The first set of two points
(similar to a double unipivot bearing) allows vertical movement. The second set of two points
allows horizontal movement. All four points have minimal friction and zero play in all
playing directions thus ensuring the cartridge platform and the cartridge itself move with very
low friction and minimal vibration across the record. It is normal to feel slack in the bearings
in certain directions.
The whole construction is mounted on a rigid VTA tower which allows very precise VTA
adjustment while playing, without any loss of rigidity, yet with up to 0.01 mm of precision
and zero play.
The main tube is constructed and machined from solid aluminium, similar to our tangential
Air line arm. The main counterweight balances the tonearm and there is a second small
counterweight with which the tracking force can be finely adjusted. Azimuth can be adjusted
in small repeatable increments with zero play, by means of an Allen key.
A feature of the tonearm is a unique detachable headshell( one spare included as standard).
The electrical connection is via standard pins but the headshell can be simply removed by
unscrewing with an Allen key. The headshell is fixed with a precise hexagonal locking
system giving the same rigidity as with a fixed headshell.
Two separate troughs damp vertical and horizontal resonances and can be finely adjusted
independently. The troughs can be removed from the tonearm.
Internal wiring is of superior special alloy silver wires. One set of 4 wires runs unbroken
from the cartridge pins to the termination box and further along into a 1.4 m long tonearm
cable with silver Eichmann bullet connectors. The second set of 4 wires runs from the same
cartridge pins to the termination box to female Cardas RCA connectors thus allowing use of
any RCA plugged tonearm cable from termination box, to phono preamp input. This gives so
called biwiring on this tonearm and a lot of flexibility with choice of no compromise cables.
Note:
If both sets of cables are connected, bear in mind that an MC cartridge will see it as »double
loading«. If you want to set up 2000 Ohms, with both sets of wire connected to the same
phono unit, then 4000 Ohms loading should be set.
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