Linnenberg JOHANN SEBASTIAN BACH Owner's Manual page 20

Gain Selection Adjustment
Each input has 3 gain settings. 50dB, 60dB or
70dB. The 50dB setting is intended for MM-
cartridges or step up transformers, whereas the
60dB/70dB gain is used for MC-cartridges. Again,
you can switch over from one to another on the
fly. When changing from A to B or vice versa, the
chosen setting will be stored.
Cartridge Loading Adjustment
Set the resistive load to 30Ω, 100Ω, 300Ω, 1kΩ or
47kΩ depending on the cartridge
manufacturer's recommendations or by
listening. The 47kΩ setting is for MM only and
only works with the 50dB gain setting. It is
disabled for the 60dB / 70dB gain setting. Once
chosen, you can not increase gain from 50dB to
60/70dB. First, reduce the impedance to at least
1kΩ. For step up transformer operation it may
be valuable to try to use the 50dB / 1kΩ setting.
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