Crossfire BMF600D - Gain Control; Gain Adjustment Procedure; Gain vs. Volume Knob; Power and Protection

GAIN CONTROL
Located in the preamp section on the side panel of the amplifier is the gain control (marked level). This control allows you to match the input level of the amplifier to
the output level of your source unit or signal processor. Matching the input can be accomplished in three simple steps:
1. Turn gain control all the way down.
2. Turn on the source unit and adjust to 2/3 of max volume.
3. Adjust the gain control until desired volume is achieved without audible distortion
Remember that the gain control is not a volume knob. Ignoring the three steps above may leave you with damaged speakers and possibly a damaged amplifier.
If you are bridging the two BMF600D or BMF1000D's together, only the gain control on the "Master" amplifier is adjustable. Use the same three steps to adjust the
gain.
LOW IN
LOW IN
R
L
LEVEL
LEVEL
HPF FULL LPF
HPF FULL LPF
OFF ON
OFF ON
MASTER
MASTER
IN
IN
OUT
OUT
INVERT
INVERT
SUB
SUB
SONIC
SONIC
50 250
50 250
LPF
LPF
LINE OUT
LINE OUT
REMOTE
REMOTE
CROSS
CROSS
OVER
OVER
SLAVE 0 180
SLAVE 0 180
Gain
Control
POWER AND PROTECTION
POWER AND PROTECTION
On the power and speaker panel of the amplifier are two LED's. These LED's indicate either power "on" or protection modes.
Green LED: This LED illuminates when the amplifier is powered up indicating
normal operation.
Red LED: This LED illuminates when the amplifier goes into protection. This
indicates a problem with the system in relation to the amplifier
connected to it.
SYSTEM EXAMPLES
SYSTEM EXAMPLES
LOW IN
LOW IN
R
L
LEVEL
LEVEL
HPF FULL LPF
HPF FULL LPF
OFF ON
OFF ON
MASTER
MASTER
IN
IN
OUT
OUT
INVERT
INVERT
SUB
SUB
SONIC
SONIC
50 250
50 250
LPF
LPF
LINE OUT
LINE OUT
REMOTE
REMOTE
CROSS
CROSS
OVER
OVER
SLAVE 0 180
SLAVE 0 180
LOW IN
LOW IN
R
L
LEVEL
LEVEL
ON OFF
ON OFF
FREQ
FREQ
HPF FULL LPF
HPF FULL LPF
POWER
POWER
50Hz 150Hz
50Hz 150Hz
HIGH IN
HIGH IN
L R
L R
CROSSOVER
CROSSOVER
BOOST
BOOST
Example 1: Two way system
Source
Unit
Set crossover
to HPF and adjust
crossover point
Subwoofer
Satellite 2Satellite 1
Set crossover
to FULL
LOW IN
LOW IN
R
L
LEVEL
LEVEL
HPF FULL LPF
HPF FULL LPF
OFF ON
OFF ON
MASTER
MASTER
IN
IN
OUT
OUT
INVERT
INVERT
SUB
SUB
SONIC
SONIC
50 250
50 250
LPF
LPF
LINE OUT
LINE OUT
REMOTE
REMOTE
CROSS
CROSS
OVER
OVER
SLAVE 0 180
SLAVE 0 180
Example 2: Multi subwoofer system
Source
Unit
Set crossover
to FULL
Subwoofer 1
LOW IN
LOW IN
R
L
LEVEL
LEVEL
HPF FULL LPF
HPF FULL LPF
OFF ON
OFF ON
MASTER
MASTER
IN
IN
OUT
OUT
INVERT
INVERT
SUB
SUB
SONIC
SONIC
50 250
50 250
LPF
LPF
LINE OUT
LINE OUT
REMOTE
REMOTE
CROSS
CROSS
OVER
OVER
SLAVE 0 180
SLAVE 0 180
Subwoofer 2
Set crossover
to FULL
LOW IN
LOW IN
R
L
LEVEL
LEVEL
HPF FULL LPF
HPF FULL LPF
OFF ON
OFF ON
MASTER
MASTER
IN
IN
OUT
OUT
INVERT
INVERT
SUB
SUB
SONIC
SONIC
50 250
50 250
LPF
LPF
LINE OUT
LINE OUT
REMOTE
REMOTE
CROSS
CROSS
OVER
OVER
SLAVE 0 180
SLAVE 0 180
Subwoofer 3
Set crossover
to FULL
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