Mackie DRM18S Owner's Manual page 7

Hookup Diagrams continued...
FKDRM 8S Flyware Kit
This is the perfect setup for any venue where the audience is level with and sloping upward from the stage and PA.
For example, a bowl, a shed or a gym with bleachers.
The left output from a mixer feeds the ch. 1 input of a single Mackie DRM18S powered subwoofer. The ch. 1 high-pass output
of the subwoofer feeds the input of a Mackie DRM12A powered arrayable loudspeaker. The output of that Mackie DRM12A
powered arrayable loudspeaker feeds the input of the next Mackie DRM12A powered arrayable loudspeaker. The DRM12As
reproduce the mid-to-high frequencies in mono, and the sub provides the low frequencies in mono.
It is possible to reproduce this exact same hookup in stereo. Simply utilize the left and right main outputs from the mixer
to feed the ch. 1 input of each DRM18S and mirror the rest of the system as described above.
Another important aspect to keep in mind is the rigging setup. In this diagram, the DRM12As are ground stacked
on a DRM18S utilizing the FKDRM18S Flyware Kit. This system may also be flown utilizing the FB100 Flybar,
with the DRM18S powered subwoofer on top. See pages 18-19 for more information about rigging.
You will want to set the crossover to DRM Top as described in detail on page 13. Or set it to Var if using a non-DRM
loudspeaker.
Three ground-stacked DRM12A arrayable loudspeakers with single DRM18S
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Owner's Manual