All About The Amplus 50 Business Music Amplifier; Amplus 50 Amplifier Controls - Bose AmPlus 100 Installer's Manual

All About The AmPlus
Figure 5

AmPlus 50 amplifier controls

Figure 6
Internal remote volume
switch
16
TM
50 Amplifier
AmPlus 50 amplifier controls
INPUTS A LEVEL
Ch1
Ch1 Ch2 -6
-10 -10
-40 dB 0 -40 dB
+ - + -
Inputs – The AmPlus 50 amplifier comes with two balanced inputs. They can be left
and right from a stereo source; two mono sources can also be mixed. Since the
AmPlus 50 amplifier is a single channel amplifier, a stereo source is internally summed
to mono.
Level – Channel 1 level adjust – This potentiometer (pot) controls the signal level of the
Channel 1 input source.
Channel 2 level adjust – This pot controls the signal level of the Channel 2 input
source.
Bass Gain – Use the bass gain pot to increase the output level between 50Hz and
150Hz (affects 50Hz – 150Hz only). This is useful for compensating for poor bass
cabinet loading or high levels of low-frequency ambient noise.
Remote Volume – Connect the remote control unit to the zone 1 (+) pin and the
ground pin.
EQ 1
Power Amplifier Outputs – The 70/100V output is active when the amplifier Mode
Switch is in the 70/100V position. The 4 output is active when the amplifier Mode
Switch is in the 4 position.
Internal High Pass Switch – When this switch is in the "HPF ON" position, frequen-
cies below 150Hz are attenuated at 18dB/OCT. Use this switch for band-limiting high-
frequency speakers in a bi-amplified system.
BASS REMOTE
GAIN VOLUME
Ch2
-6
0
OFF +10
High Pass
Filter
C
POWER AMPLIFIER
MODE
70/100V 4-16
+ - + -
70/100V 4-16