A Note About Cardioid Operation - Mackie DRM18S Owner's Manual

A Note About Cardioid Operation

DRM18S subwoofers allow for three variants
of cardioid operation:
Double-Stack – Two subs stacked with
the bottom facing away from the audience
and the top facing towards the audience.
Triple-Stack – Three subs stacked with
the bottom facing away from the audience
and the top two facing towards the audience.
Triple Horizontal – Three subs oriented
horizontally with the left and right subs facing
the audience and the center sub facing away
from the audience.
Be sure to set the cardioid aiming as outlined
on page 14.
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DRM18S 2000W 18" Professional Powered Subwoofer
Double-Stack
Triple Horizontal
Triple-Stack