The rotary switches on the right hand side are used to set the desired
input capacitance for the left and right channels as shown in Table 2. The
information about the requirements of your cartridge will be included in
the manufacturer’s specification for the pick-up system you intend to use.
Select the value which is closest to the manufacturer’s stated figure. Note
that the phono connecting lead also represents a capacitance in the
range 50 to 200 pF, depending on the manufacturer. It is essential to set
the same value for both channels. If you do not have access to the
manufacturer’s specification, a good starting point for input capacitance is
position 4 (170 pF). This is the factory default setting.