Mackie HD 1801 Owner's Manual page 5

HD1521 reproduces
above the subwoofer' s
crossover point
Power
Cord
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.
HD1801: 3-WAY SYSTEM - MONO SUBWOOFER WITH HD1521 LOUDSPEAKERS
all frequencies
Line-level
High Pass
output A
HD1801 subwoofer
reproduces the
low frequencies
HD1521 reproduces
all frequencies
above the subwoofer' s
crossover point
Line-level
High Pass
output B
HD1801
input B
Right
line level
HD1801
output
input A
Left
line level
output
Power
Cord
1604-VLZ3
Mixer
Power
Cord
Owner's Manual
5