User manual KUZMA STOGI TONEARM

[. . . ] INSTRUCTION MANUAL FOR KUZMA TONEARMS STOGI STOGI A ND REFERENCE KAT d. 29) 3 4 4 5 5 8 9 10 11 15 16 18 19 19 20 21 21 22 23 24 24 24 _________________________________________________________________ STOGI/STOGI REFERENCE 2 KUZMA I. GENERAL DESCRIPTION The main structure and headshell are both machined from solid aluminimum blocks while the tube is of specially treated aluminium which is internally damped. The quality bearings are carefully selected and individually checked and tested before assembly. [. . . ] In either case the tonearm will have to be repositioned on the armboard. It should be noted however, that different cartridges allow for more or less movement than others. _________________________________________________________________ STOGI/STOGI REFERENCE 14 KUZMA F. Fine VTA Adjustment VTA describes the angle between the record surface and the stylus (Fig. The standard angle is 15° but cartridge manufacturers work with degrees of anything between 10°- 30° so only by listening tests can one ascertain the correct angle for your particular cartridge. The VTA also varies according to the tracking force and thickness of records. For your information to change the angle by 1° means a change in height of approximately 3 mm on the pillar. 1. With felt pen mark the position where the pillar meets the base as a point of reference. If the tonearm is too low the sound has a tendency to have an overblown base and the stereo picture is imprecise. Try moving the tonearm up for 3 mm and down for 3 mm to judge where the arm sounds most balanced with more precise stereo picture. An increase in tracking force is equivalent to lowering the tonearm and vice-versa. Now fix height firmly. _________________________________________________________________ STOGI/STOGI REFERENCE 15 KUZMA G. Azimuth Adjustment Normally this is obtained automatically when the tonearm is mounted, providing the lines (Fig. 22) Azimuth describes the angle between the record surface and the stylus, viewed from the front of the cartridge. This should be 90° and can be checked by observing if the cartridge body is square with its mirror image on the blank part of a record or by putting a mirror under the stylus (taking care that the stylus does not slide). Stogi Reference: If stogi reference the cartridge is not square, the tube can be rotated slightly to obtain the correct azimuth. Firstly the tube should be released by loosening the two screws on the top of the arm. Then (being careful not to push the tube off the armrest) insert the Allen key into the screw on the right side of the arm. (This screw is above the cueing device. ) Observing the position of the marks on the tonearm and the cartridge body in a mirror, this screw should be turned for approximately 45° to alter the azimuth. A clockwise turn of the screw causes a clockwise rotation of the arm and vice-versa. When the cartridge body is square fix the top two screws firmly but do not overtighten as the locking mechanism holds very quickly. Rotate key clockwise for 90°, then manually rotate tube and fix screw with anticlockwise action. _________________________________________________________________ STOGI/STOGI REFERENCE 16 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. [. . . ] Hum This can be caused by the transformer in the power amplifier being situated too close to the cartridge or by the tonearm output cable being too close to the mains cable. If _________________________________________________________________ STOGI/STOGI REFERENCE 23 KUZMA VII. With tonearm on Turntable The tonearm can be left on the turntable when being transported short distance by. Many turntables, however, cannot be properly packed for longer transport with the tonearm in position and the tonearm, therefore, must be removed and repacked in original packing. B. [. . . ]