c) Unit selector switch [4]
The DDM will calculate the correct delay time for you by just entering the
acoustical distance in meters or feet.
Bring the switch to the position you want to use. The DDM asks you ‘CHANGE
UNIT?’ – if you really want to change the unit you have to press both keys (+
and -) together for more than one second. The DDM now works with a new
delay unit.
CHANGE
UNIT?
d) Delay time setting [2], [3]
The delay time needed can be set easily by pressing the plus or
minus key. Holding the keys increases or decreases the value by
larger amounts. It is possible to adjust the delay distance by 0,1 m
(10 cm) within an range of 330 m (or by 1 ms or by 1 ft) which should
be ideal for all sound reinforcement applications.
330.0 m
DELAY
0.0 m
DELAY
e) Test tone mode for setting the correct delay time [6]
The implemented test-tone generator is a useful tool which can help
you setting the correct delay time.
0
...
33
0
m
PLUG
IN
Main PA
Delay Line
X m
DELAY
X ms
DELAY
X ft
DELAY
