High Pass Filter; Low Pass Filter; Limiter - Martin Audio DX0.5 User Manual

DX0.5

0.000 m – 204.339 m

0.000 feet – 670.233 feet
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High Pass Filter
High Pass Filters are utilized to set up crossovers in multi‐way loudspeaker and subwoofer systems. They may also be used to
roll‐off low frequencies that full‐range loudspeakers cannot efficiently reproduce.
Use the Edit2 [8] Control to change the frequency. Turning this control clockwise increases the frequency, while turning it anti‐
clockwise decreases the frequency. The frequency ranges from 20.0 Hz to 20.0 kHz.
Turn the Edit3 [9] Control to see the various filter type and slope options:

No Cut‐Off

Butterworth 6 dB

Butterworth 12 dB

Linkwitz‐Riley 12 dB

Bessel 12 dB

Butterworth 18 dB

Butterworth 24 dB

Linkwitz‐Riley 24 dB

Bessel 24 dB
Press the ESC button [11] to exit this edit mode.
Low Pass Filter
In conjunction with high pass filters, low pass filters are utilized to set up crossovers in multi‐way loudspeaker and subwoofer
systems. For example, in a 3‐way stereo system, use the high and low pass filters on the output feeding the mid‐range transducer
to define the range of frequencies it will reproduce. Combined with high and low pass filters on the outputs to the low and high
frequency transducers, you may divide the frequency spectrum so each transducer is reproducing the range for which it is best
suited, making the system sound its best and operate most efficiently.
Use the Edit2 [8] Control to change the frequency. Turning this control clockwise increases the frequency, while turning it anti‐
clockwise decreases the frequency. The frequency ranges from 20.0 Hz to 20.0 kHz.
Turn the Edit3 [9] Control to see the various filter type and slope options:

No Cut‐Off

Butterworth 6 dB

Butterworth 12 dB

Linkwitz‐Riley 12 dB

Bessel 12 dB

Butterworth 18 dB

Butterworth 24 dB

Linkwitz‐Riley 24 dB

Bessel 24 dB
Press the ESC button [11] to exit this edit mode.
Limiter
Each output has a powerful limiter that may be used to protect loudspeakers from damage due to excessive output levels from
the mixer. Limiter parameters are published for all Martin Audio systems on our website and whilst we accept that personal
preference may mean that other parameters may be changed from our published figures‐ EQ changed for personal preference
for example‐ we would strongly recommend that the recommended limiter parameters are always used to maintain reliable
operation for many years.
Three Limiter controls may be edited:
HAM09224 User Guide V1.0
USER GUIDE
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