Kuzma 4Point Tone Arm

Kuzma 4Point Tone Arm 

 

200408:
4Point tonearm comes with single set of wires,same as 4P9 and 4P14. Optional is possible to order other wiring options: XLR,RCA female box,biwring,...Lemo. 
 
190101:
4Point bearing  modification: Officialy from Jan 1st, 2019
As standard we now fit into all 4Point tonearms sapphire/ruby bearing cups instead polished steel cups. This lowers friction and noise level in bearings thus improving performance.  

 
All 4P11 ( from  S/N 280651 and higher)  and 4P14 (from  S/N 310101 and higher ) since July 1st 2018 are ALREADY fitted with sapphire/ruby cups.
See review in Positive Feedback issue #102 - 3/2019 about details: Link

 
180101:
Standard wiring for 4Point ( called also 4Point single in past)  is a sinle set of wires to RCA. Biwiring or termination RCA box is optional.
 
Differs from other  tonearms by introducing several new and unique features.  The new zero-play bearing is configured on 4 points.  The 4POINT tonearm has an effective length of 280mm (11-inch), a very precise VTA adjustment facility and fits our standard mount with a 212mm   pivot-to-spindle distance.  The heart of this new design is the unique 4-point bearing. Two points (which are similar to a uni-pivot bearing) allow and control vertical movements of the tonearm. The other set of two pointed bearings allow and control horizontal (lateral) movements of the tonearm.  All four points of the bearing have minimal friction and zero-play in all planes of movement, thus ensuring that the cartridge platform and the cartridge itself follow the grooves of an LP with extremely low friction and minimal vibrations.
4POINT’s main section is firmly connected to a very rigid and inert VTA tower which provides the option of fine adjustments of the vertical tracking angle either when the tonearm is stationary or while the LP is playing.  All this, of course, without any loss of rigidity and with 0.01mm accuracy of adjustment and zero-play!
The main tube is accurately machined out of a solid rod of aluminium as in our Air Line parallel tracking tonearm.  Two separate troughs offer independent damping of vertical and horizontal resonances allowing a very high degree of fine adjustment and tuning at all times. If so desired, damping troughs can be easily be detached from the tonearm.
4POINT’s arm balancing solution consists of two counterweights – the main weight allows an accurate overall balance once the cartridge has been installed, while the second, smaller weight provides extremely fine further adjustment for total tracking force accuracy. 
Introduced: 2008
Azimuth is adjustable by precise worm drive mechanism allowing very small, repeatable adjustments.
 

Detachable headshell is another distinctive feature of this superior tonearm. Using a small Allen key, one can completely remove the headshell from the arm tube while the arm wiring including cartridge pins remains uninterrupted in its single run.  Our headshell is fixed with a hexagonal locking system which provides the same degree of rigidity as if the headhsell was permanently bonded to the arm tube.
4POINT’s internal wiring is of the highest quality using special alloy silver formulation.  A single, uninterrupted set of 4 wires runs from the cartridge pins to the   RCA connectors (overall length 1.4m).
 

Other wiring options are possible including Biwring: two sets of wires( 8 in total) runs simultaneously from the cartridge clips into the termination box and one set connects to the female RCA connectors, allowing use of an alternative tonearm cable between the termination box on the 4POINT and a phono input on your preamplifier. second sets runs directly from cartridge clips to male RCA connectors in one uninterupted way. 
In Manual folder find drawings how to fit this tonearm on other turntables!

 

Technical Data

Effective length 280 mm

Arm mount distance 212 mm

Distance from spindle to horizontal bearing 264 mm

Bearing type 4 points (sapphire & ruby cups / steel pivots-see modification)

Effective mass 18 g

Total mass 2050 g

Offset angle 19.5*

VTA adjustment Precise VTA tower

Azimuth adjustment Precise worm drive

Tube Conical

Bias Yes

Max. standard cartridge weight 35 gr

Optional light and heavy counterweight Yes

Damping Separate vertical and horizontal damping

Detachable headshell Yes ( + 1 spare- no dot)

Arm mount Kuzma

Standard wiring single set of silver cables (42 pF )

Accessories Protractors,Allen keys, cartridge mounting screws

 

Options XLR( pin 2 plus and pin 3 minus), 5pin, RCA box, biwiring