MB QUART PAB 1200.1 D - Manual (Page 11)

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MBQR-1
5 channel discrete,
one being mono low pass
You can use this confi guration simply as 4 discrete full range chan-
nels, with a 5th low pass channel. All of the crossovers are bypassed,
except the LOW PASS on channel 5. The 5 channels can also be uti-
lized with an outboard active crossover, or with crossovers in head
units or equalizers.
Interconnect cable checklist:
Connect channel 1&2 inputs to the front output, channels 3&4 to the
rear output, and channel 5 to the mono subwoofer output of a head
unit or in dash equalizer. The LOW PASS fi lter on channel 5 will be
in tandem with that of the source. You can either set it to the same
frequency for a steeper rolloff, or set it to a higher frequency to mi-
nimize it’s effect. By the same reasoning, you could switch channels
1,2,3&4 high pass crossovers in for steeper high pass slopes.
Switch setting checklist:
- INPUT MODE: 5CH DISCRETE
- CH 1/2 X-OVER: FULL
- CH 3/4 X-OVER: FULL
Crossover frequency control checklist:
- CH 1/2 HIGH PASS: N/A
- CH 3/4 HIGH PASS: N/A
- CH 3/4 LOW PASS: N/A
- CH 5 LOW PASS: 100 Hz
Please note that these frequency points are suggestions only. Refer to
the loudspeaker manufacturer specifi cations and the section “Setting
up systems after installation for best performance”
Level control checklist:
Refer to the section “Setting up systems after installation for best
performance”
Minimum fi nal loudspeaker impedances: 2 ohm per channel
MBQR-1
3 or 4 channel discrete,
one being mono low pass
We will use the same basic setup as above to illustrate a 3 channel
arrangement, by mono bridging the stereo channel pairs 1&2, 3&4.
For a 4 channel setup, mono bridge only one set.
Interconnect cable checklist:
- Use 2 Y-adapters RCA cables, one for channels 1&2, and the second
for channels 3&4, to create 2 inputs for channels 1,2,3&4 only, as
shown.
- Connect the positive terminal of channels 1&2 mono speaker to
channel 1+, and its negative terminal to channel 2-. Connect the
positive terminal of channels 3&4 mono speaker to channel 3+, and
its negative terminal to channel 4-.
- Channel 5 is a true single channel, and as such is not bridgeable.
Minimum fi nal loudspeaker impedances:
- 2 ohm per channel in stereo mode
- 4 ohm per mono bridged pair
- 2 ohm on channel 5
AMPLIFIER APPLICATIONS
PAB 5400 5-Channel Amplifi er