Kuzma Stogi Reference - Manual (Page 17)

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STOGI/STOGI REFERENCE 17 KUZMA
Fine Adjustment
This can be done using an osciloscope (see p. 16) or by using good records in a good system
and listening to the sound. Cartridges with fine profiles (VDH, Microline etc.) are more
sensitive to this adjustment. On the other hand cheaper cartridges are not made so well,
making fine adjustment more useful.
Start listening with the tube in zero position, ie. with the marking lines aligned. Listen to the
sound-stage, the focus and the stability of the instruments. Release the two locking screws
and rotate the Allen key so that tube rotates for approximately the width of the mark. Listen
and then rotate tube for a similar amount in the opposite direction and again listen. Ajudst the
arm to the position in which the best sound was obtained. In this position make further
adjustments by turning the Allen key for a quarter turn in one direction, listening and then
turning a quarter turn in the other direction and listening.
Continue this process making ever decreasing adjustments, 1/8 of a turn, then 1/16 and so on.
When optimum results are obtained fix the locking screws.
NOTE: During fine adjustment only gently fix locking screws during listening.
The adjustment screw is highly sensitive and the smallest pressure on the Allen key
will alter the azimuth and sound.
Do not attempt any adjustment when the locking mechanism is locked. Although no
damage can be done.
Significantly improved sound can be obtained by paying attention to azimuth
adjustment prior to final VTA adjustment.