Filter
Top Products
Rear Panel Facilities
LINE INPUT - The rear panel has a Line Input
socket for connection of other signal sources
into the system. This can be used for
plugging a CD, Tape or MiniDisc player into
the amplifier for practising or rehearsing or
for connection of a second preamp into the
system.
EFFECTS SEND / RETURN - A serial effects
loop is provided at a level of 0dB. The
EFFECTS SEND socket can also be used as a
Line Out socket if required. The signal path
through the preamp is only broken when a
jack plug is inserted into the EFFECTS
RETURN socket. The EFFECTS SEND is situated
after the EQ, Valve section and Sub Bass
Processor.
FOOTSWITCH SOCKETS - Two stereo jack
sockets marked SUB/VALVE and EQ/SHAPE
are provided for connection of 2-way push
on/push off type foot switches. The SUB
footswitch mutes the Sub Harmonics when
closed. For this to operate the Sub Harmonics
must already be activated with the front
panel push switch. For all other footswitches
to operate, the corresponding front panel
push buttons must be in their OUT position.
CROSSOVER AND OUTPUTS (Rack Preamp
RPM-1 only) - The BASS MAGNIFIER RACK
PREAMP RPM-1 has a built in high precision
CROSSOVER with separate jack socket
outputs for the HIGH PASS and LOW PASS
signals. Crossover frequency is adjustable
from 35Hz to 160Hz with a level control for
the LOW PASS output to adjust the balance
between LOW and HIGH outputs signals.
There is also a FULL RANGE jack line output
provided. This section is provided with
switched output levels for simplified
connection to power amplifiers that require
either a 0dB or +4dB signal level. This
switches the levels of all three outputs.
SPEAKER OUTPUT (except Rack Preamp
RPM-1) - The Speaker Output sockets are also
situated on the rear panel of the unit. The
ABM provides both jack and speakon
connectors.
#17669 - Manual 2005_ABM 18/4/05 12:21 pm Page 8