Kuzma Stabi-XL4101014 User Manual
Fig.1
KUZMA STABI XL 4 TURNTABLE
( on photo black with Stogi Ref 313)
Instruction manual
2010-10
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KUZMA LTD
INSTRUCTION MANUAL FOR STABI XL4 turntable
The Stabi XL 4 turntable is a very precisely engineered piece of equipment. However the
construction is robust and requires minimal mainentance for optimal performance.
CONTENTS: Page
General 3
Unpacking 4
Basic Setup 5-6
Setting up turntable 7-8
Use and Adjustment 9
Mainentance 10
Problems 11
2
General Description: The turntable is packed in four boxes. Some parts are very heavy so
handle boxes with care .
The base is of solid brass which is clamped together from two pieces and has good damping
properties. The main shaft, which is 28 mm in diameter, is fixed into this base. The platter is
a sandwich construction of aluminium and acrylic plates screwed together in a pre-stressed
form to damp all unwanted vibration. Hard non-metalic material is used for the bearing
which, together with a ruby ball, is lubricated in an oil pool to provide one point contact
ensuring minimal vibration and noise. The position of the platter is further stabilised by a
sliding non – metal ring, precisely matched to the shaft diameter and immersed in a second
large oil pool.
Four motors are mounted separately in their own heavy brass towers. Four pulleys, via four
belts, give stable symetrical drive to the subplatter. The electronic power supply generates
controlled feed to four motors, in such a way that the vibration of the motors is minimised. A
heavy threaded brass and acrylic clamp provides additional damping of vibration caused by
playback, as well as flattening curved records. The record is pressed securely to the plattermat, which is a semi-hard combination of rubber and textile.
The tonearm tower is a massive brass unit and the armboard can be exchanged to
accommodate various tonearms. The mass of the tower gives structural and damping rigidity
to the tonearm. The unit allows for VTA adjustment during playback without loss of rigidity
or azimuth. The movable part is supported via a linear ball bearing 30 mm in diameter and
100 mm in length. This gives firm support while allowing VTA to be changed. Adjustments
can be made over a range of 60 mm, each turn of knob representing 1 mm precisely. In order
to simplify adjustment, a micrometer gives a digital readout over a range of 12mm at an
exactitude of 0.01 mm. These adjustments are repeatable.
Stabi XL 4 turntable :Technical data
Mass (total w/o PS) : 96kg
Platter: 22 kg
Base: 27kg
Motor towers: 4 x 7kg
Tonearm tower: 14 kg
Speeds (fine adjust): 33, 45 rpm
Dimension: 450x 400 x 300 mm
Power supply: 110V or 240 V , 50/60Hz (factory set)
Optional: use two more towers, tower without VTA for all arms( no.3)
Safety Precautions:
Electrical connection to the power supply from the mains comes via the cable. Please keep
PS away from moisture and be careful not to damage the mains cable. The same precaution
applies to cables feeding the motor towers.
3
Unpacking:
Stabi XL 4 comes packed in four boxes. Be aware that the three larger boxes are very heavy.
These boxes have double packaging. Inside are cutouts in the packaging blocks of firm foam
for various parts of the turntable. Some parts are very heavy, so handle with care while lifting
from the boxes and placing them on the assembly surface.
Contents:
Box 1:
Platter and two motor towers
Box 2:
Tonearm tower, base, subplatter, clamp, VTA guage.
Box 3:
Power supply, belts 4x, motor cables 4x, bearing oil bottle 2x, clamp washers 2x, power cord,
Allen keys: 1.5 , 2 , 2.5, 3 mm, motor positioner, instruction manual.
Box 4:
Two motor towers, two motor tower supporting plates.
Basic Setup:
Note: Some parts are very heavy, so be careful when handling!
Note: Choose a suitable supporting table which can hold over 100 kg without warping.
Note: While the parts are packed in plastic bags for protection, these are not intended to be
strong enough to lift or carry the contents.
Open all three boxes and remove top covers.
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