Kuzma STOGI REF 313 110513 - Manual (Page 11)

Significantly improved sound can be obtained by paying attention to azimuth adjustment prior
to final VTA adjustment.
To make azimuth adjustments, release the two screws locking the mechanism at the centre top
of the main tonearm tube, with Allen key 2mm. Under the main tube is a tiny rod with a
hexagonal screw. Insert the Allen key 2mm into the screw (it may feel loose), rotate it slightly
and it will alter the azimuth. (Fig.1)
Rotating it back will bring azimuth to its previous position. Changes can be seen by
misalignment of the white lines on the top of the centre of the tube. Even 15 degrees rotation of
the Allen key will make a significant difference.
4.5. Bias adjustment:
Note: see Appendix 3 on our web site.
The bias should be adjusted according to the tracking force. Use Allen key 1.5mm, until the
position of the weight is equivalent to your chosen tracking force. Lock the screw when in
position.
Fig. 6 Bias adjustment
For maximum trackability, it is advisable to set the bias by use of an appropriate test record, ie.
those with tracking bands. Please do not use test records with blank space where the tip of the
needle sits on the surface rather than in the groove.
Set bias and tracking force as previously described and listen to mistracking on highly
modulated tracking bands. On those bands can be heard as impure tones and there will be more
overtones. (See instructions on test record)
If mistracking is apparent, increase or decrease bias until minimum mistracking is found. If
mistracking is heard on the right channel only then the bias is too low, if on both channels the
bias is too high or the trackability limit of the cartridge has been reached.
Finally further decrease mistracking by increasing tracking force to the maximum
recommended for the cartridge.
Again try to optimize bias.
X P
mm gr
0 1.00
3 1.25
8 1.50
13 1.75
18 2.00
11
bias lock
X