Setup
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Inputs and Outputs
Line Input
Analog input for connecting an L1 Pro or other line-level audio source. Compatible with XLR, TRS balanced,
and TS unbalanced cables. Use Line Input 1 (Left) and Line Input 2 (Right) together for stereo applications.
Line Output
Use an XLR cable to connect the line-level output to a loudspeaker. Use Line Output 1 (Left) and Line
Output 2 (Right) together for stereo applications.
Settings
Phase/Pattern
PHASE/PATTERN
PHASE/PATTERN
Adjust the polarity of the Sub. Press the button to switch between positive
polarity (+) and inverted polarity (–). The corresponding LED will illuminate
white while selected. Choose the polarity that sounds best for your
CARDIOID
CARDIOID
application.
Cardioid Mode
Cardioid mode is for use with a stack of two identical Sub modules, which
allows for most of the sound energy to be focused in front of the Sub stack
while reducing the sound energy that is generated behind the Sub stack. Press and hold the button for four
seconds to select CARDIOID. The LED will illuminate white while selected. Press and hold again to switch
back to +. Cardioid mode should only be used in a stacked configuration of two identical Sub modules, with
the top Sub facing the coverage area and the bottom Sub facing the non-coverage area. Set the Phase/
Pattern of the top Sub to + and the Phase/Pattern of the bottom Sub to CARDIOID. When adjusting the level
of the stacked subs in Cardioid mode, be sure that the Level Control is set to the same position on both Subs.
See the below diagrams for Sub stack orientation and coverage patterns.
Coverage Patterns (Top View)
Cardioid Stack Configuration
Cardioid Mode Off
Cardioid Mode On
PHASE/PATTERN
Facing
coverage area
CARDIOID
Top Sub
Top Sub
Facing non-
coverage area
Bottom
Bottom
Sub
Sub
PHASE/PATTERN
CARDIOID
Owner's Guide • Sub1/Sub2 Powered Bass Module
English • 9