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HD1801: 3-WAY SYSTEM - MONO SUBWOOFER WITH HD1521 LOUDSPEAKERS
This diagram shows the left line level output of a Mackie 1604-VLZ3 mixer feeding input A of one
Mackie HD1801 subwoofer. Two HD1521 loudspeaker inputs are fed from the A and B High Pass
outputs from the subwoofer. Experiment with the HD1801’s polarity switch to achieve optimum
performance. Placement of the subwoofer relative to the full-range loudspeakers will also affect
performance. See page 10 for more information.
Left
line level
output
Right
line level
output
Po wer
Cord
Line-level
High Pass
output B
Po wer
Cord
Line-level
High Pass
output A
HD1801
input A
HD1801
input B
Po wer
Cord
HD1801 subwoofer
reproduces the
low frequencies
1604-VLZ3
Mixer
HD1521 reproduces
all frequencies
above the subwoofer’s
crossover point
HD1521 reproduces
all frequencies
above the subwoofer’s
crossover point
5
Owner’s Manual
Owner’s Manual