Specifications

LV3 & V3
6922s
Hi/Lo gain
switching
5AR4
FUSE
LOCATION
SETTING UP THE PHONO STA G E
Slide the high/low switches (labeled in the top view
photo) to the desired gain setting. The High gain setting
is typically for MC-Moving Coil or low to medium output
cartridges of 0.2mV to 1.0mV; the Low setting for MM-
Moving Magnet cartridges of 1.0mV or greater. Both
switches must be set to the same setting. One controls
the padding on the right channel, the other the left.
Note: If insufficient gain is realized from the phono stage
of the Pre 1 when a MM-Moving Magnet cartridge is
used in the low gain setting, an extra 18dB of gain may
be utilized by switching to High gain. The Pre 1 phono
stage has sufficient overload reserve to handle the high-
er input levels if this mode is chosen.
CARTRIDGE LOADING - RESISTA N C E
In either MM or MC cartridge operating modes, the
input load resistance that the cartridge sees is factory
set at 47K ohms. This may be altered by your dealer (or
competent technician) by soldering a new parallel resis-
tance value to the solder terminals (both channels)
labeled “R-Load” (pictured below).
Phono Cartridge Loading
Resistance and Capacitance
solder terminals
LV1 & V1
6922s
LV1 & V1
6922s
LV2 & V2
12AT7s
LV2 & V2
12AT7s
FUSE
LOCATION
5AR4
LV3 & V3
6922s
Hi/Lo gain
switching
Phono Cartridge Loading
Resistance and Capacitance
solder terminals