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With the jumper plug set to this location on a channels jumper module will
only let the signal present at that channel’s input to appear at it output.
Along with being channel 2's input, it is used as the input to the right bus
and the right source for the ‘L+R BUS’. Because it is a BUS input, any
signal input here will appear at the ‘R BUS’ jumper terminal for both of the
AV2500 series
II
’s jumper modules.
Installing a jumper plug at this terminal on any of the five internal jumper
modules selects the combined signal being carried by both the left and right
inputs. If the left bus and right bus are being used to carry stereo right and
left channels, a jumper plug installed at the ‘L+R BUS’ location will provide
a true L+R mono output.
Along with being channel 1's input, it is used as the input to the left bus and
the left source for the ‘L+R BUS’. Because it is a BUS input, any signal
input here will appear at the ‘L BUS’ jumper terminal for both of the AV2500
series
II
’s jumper modules.
If volume control is desired only from the source, or if outputs are being
combined to obtain higher power, the jumper plug should be installed at the
‘NO VOL’ location.
If volume control is desired at the amplifier, beyond that provided at the
source, a shorting plug is installed at the ‘USE VOL’ location. The ‘USE
VOL’ setting
be used when channels are bridged or
combined.
This is a single jumper module that is set apart, up and to the right from the
channel jumper modules on the circuit board. It provides a special function,
when the jumper is set on the ‘-L’ pins, the left bus signal feeding the left
channel will be inverted.
