Function Screens; Parametric Equaliser Screen - Martin Audio DX1 User Manual

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CONTENTS
13
13.1
All modes feature 5 bands of fully flexible parametric equalisation per
output, with all sections selectable to Low or High frequency shelving
response.
Each parametric section can be positioned at a frequency from 20Hz to
20kHz and features a wide range of 'Qs' to produce response curves
ranging from broad to notch. The gain control ranges from +15dB to -30dB
in 0.1dB steps. Frequency steps are 1/36 octave resolution for precise
control. Since all filtering is achieved in DSP all settings are re-settable
with absolute accuracy and in ganged mode parameters track identically.
Very narrow band notch filters (maximum Q of 128) can be achieved and
unlike analogue filters these 'tight' Q filters are entirely stable. The
maximum notch depth is -30dB.
Parametric filters are carefully implemented using Double Precision
processing. This method is costly in terms of processing power but yields
substantial benefits in terms of the DX1's exceptional noise performance
and greatly improved low frequency stability.
To adjust parametric settings:
Use the FREQ control for the frequency.
Use the Q control for the Q.
Use the GAIN control for the gain.
Use the BYPASS key to switch the parametric filter in and out of circuit.
Note: the diamond symbol in the top right hand corner of the display
indicates that the filter is in circuit and the horizontal line symbol shows that
it is out.
(N.B. To show parametric filters in bandwidth (BW) rather than Q, go into
the system sub-menu, select 'filter Q or BW' and then select 'BW'.)
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FUNCTION SCREENS

Parametric equaliser screen

OP1+4
1K00Hz Q=3.0 0.0dB
Martin Audio – DX1 Speaker Management System
APPLICATIONS GUIDE
Low PEQ:1
14
GUIDES