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Limiter
The DLM-26 has a limiter-function with independent limiters (one per output), which are adjustable between
-10 and +20 dB.
There are 2 primary reasons for using a limiter:
1. Prevention of amplifier clipping
2. Limit the amount of power transmitted to the speakers
The limiter serves as an additional clipping protection to avoid speaker damage. The signal level is always
limited to the adjusted threshold-level.
In most cases, it is sufficient to adjust the threshold-value to the clipping level of the connected amplifier.
Nevertheless make sure that the amplifier does not distort.
If the limiter is adjusted to e.g. +2,0 dB, the output signal level Limit corresponds to +2 dB and the levels -2,
-6, -12 and -20 dB correspond -1, -4, -8 und -12 dB.
Note: Limiters are usually set slightly below their maximum settings.
Limiter Level Calculation: Limiting Threshold (dBu) = Transducer Voltage Limit (dBu) – Amplifier Gain (dB)
Delay
With the delay, it is possible to compensate differences in the running distances between different speaker-
systems or speaker-systems at different installation spots.
The delay can be adjusted for both inputs and all outputs between 0 and 365 ms in 21 s steps.
While the
/
- buttons (5+6) allow you to adjust the Delay in small 21 s steps, the jog-wheel allows you
to adjust larger delays more quickly.
How to calculate the delay-time:
The delay-time T equals the distance in meters (D) divided by the speed of sound (C).
T=D/C
How to calculate the speed of sound: C=20.6 * (273 + °C) in meter per second..
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