Delay for additional PA / fill-in delay, with mono cardioid subwoofers in center
The main PA works directly, without delay. The left and right channel of the secondary, or side-fill PA
works through the full range channels of the SDD3, (channel A and B) for proper time alingment with the
main PA. Subwoofers are in the center and work in mono, cardioid mode.
When using this system, it is possible to move in time (change the distance) of sidefills and the mono
subwoofers in cardioid mode compared to the main PA.
Using the System
Page | 10
0 m
1 m
0,75 m
2 m
1,4 m
3 m
Main PA
Secondary PA
or Side-fill
(60Hz) wavelenght / 4
Front Sub
(delayed)
Rear Sub
STAGE
right
left
right
left
right
input
left
input
subwoofer
input
STAGE
Main PA
Main PA
Side-fill
left
Cardioid
subwoofers
System with mono subwoofers - top view
System with mono subwoofers - wiring
Side-fill
right
