6
BP2-MM / MC PHONO PREAMPLIFIER
MUTE
POWER IN
TT GND
BP2-MM / MC PHONO PREAMPLIFIER
LEFT
RIGHT
IN
OUT
OUT
IN
LEFT
RIGHT
MM MC
1
3
4
5
8
7
6
2
Front and Rear Panels
1. Mute Switch
Push button switch to mute audio signal from
the BP2-MM/MC. Press again to unmute. The
mute switch also controls the attached power
supply’s trigger circuit. When in mute, no voltage
is present on the trigger out. When unmuted, the
trigger output voltage is present.
2. Power LED
The LED lights green (optionally blue) when
the BP2-MM/MC is operating normally and
unmuted. When in mute, the LED is red.
3. Ground Screw
Establish a secure connection to the ground
screw on your turntable when available to
reduce the possibility of hum due to ground
voltage differential between the turntable and
the phono preamplifier. This is usually done
with a cable featuring a small spade connector
on each end. The connector will accept stripped
bare wire, or with spade lug or banana plug
connector
4. Audio Input
Connect audio to your BP2-MM/MC from your
turntable output through the left/right input
jacks.
5. DC Power Inlet
Connect the BP2-MM/MC to your Bryston PS-3
DC Power Supply using only the included cable
to apply power to the BP2-MM/MC.
6. Audio Output
Connect the BP2-MM/MC to your analog line-
level preamplifier input using the left/right
output jacks.
7. Data Plate
The data plate is located underneath the
unit and lists the model number, voltage
requirements, serial number, and date code.
Ensure that the voltage and line frequency
conform to your locality before powering the
unit on.
BP2-MM-SIL-120
Serial No: BP2-MM-00000
Date: 1530 REV: 1234
8. MM / MC Switch
Set this switch according to the type of cartridge
used on the turntable. Setting the switch to
MM bypasses the internal step-up transformers
and only applies the active gain stage for a gain
of 41dB. Moving the switch to the MC position
engages the internal transformers and applies
an extra 20 or 31dB of gain depending on
whether you have the BP2-MM/MC-20 or BP2-
MM/MC-30 model.
