7
With a unipivot arm it is particularly important to level the
turntable
.
Move the counterweight until the arm has a very slight downward
tracking force, just enough to keep it from moving sideways on the
platter or enough to keep it in the groove of the record
Next, the lateral balance or azimuth must be set. Because the phono
cartridge is offset, there is an unbalancing force that tilts the arm to one
side. For the cartridge to properly track the record groove, the stylus
must be ninety degrees to the record surface. Move the counterweight so
a slight tracking force is applied and the stylus just sits on the record
surface.
Rotate the counterweight as needed to bring the arm into correct lateral
balance to set azimuth. When the azimuth has been set, you can lightly
tighten the setscrew located on the top of the counterweight. You can
use the azimuth ring or the counterweight to set correct azimuth. Lay
the long thin rod supplied behind the cartridge mounting screws into the
V groove and use it as a guide for setting azimuth.
Long thin rod
90 degrees
Unlike other unipivot arms, the Classic 3’s lateral balance weight does not
hang off to the side of the arm. Instead, its position around the bottom
of the upper bearing housing places the weight below the pivot point.
This increases mass below the pivot and increases arm stability.
