AUDAC SMA Series, User Manual, Page: 22 / 32

SMA&SMQ - User manual 022
RECOMMENDATION
When separating frequency ranges in two or more way systems, a Linkwitz-Riley filter with 24 dB / Oct roll-off is
recommended between different frequency ranges. A high-pass Butterworth filter with 24 dB / Oct roll-off is suggested
for elemination of low frequencies outside the frequency range of the loudspeaker, avoiding subsonic overload.
Output setup >> Equalizing
A parametric 7 bands equalizer will allow to cut or boost specific frequency ranges, helping to improve the sound and adapt
it to acoustics of the location where its being used.
A standard configuration with center frequencies for 60 Hz, 150 Hz, 400 Hz, 1 kHz, 2.6 kHz, 6.8 kHz and 15 kHz with Q factor
of 0.7 is pre-loaded. The center frequency of each band can be finely adjusted within a range of 10 Hz and 22 kHz, while
the Q-factor can be adjusted within a range of 0.1 and 15 and the level of each band within a range of -15 dB and +15 dB.
A fader overview for the 7 bands equalizer will be shown after selecting
the ‘EQ settings’ menu item. On top of the screen, the center frequencies
for each band are shown with right under the currently selected equalizing
level.
The selection of the corresponding band can be made by turning the
rotary selection dial until the corresponding band is indicated in green
and pressing it. Level adjustment can be done by turning the selection
dial and confirmed by pressing it again. After this confirmation, another
band can be selected and adjusted in identical way.
Adjustment of the Center frequencies and Q-factors can be done by
selecting the corresponding ‘EQ-frequency’ and ‘EQ Q-factor’ buttons on the bottom of the screen. When selected, pop-up
windows will appear where the corresponding adjustments for each band can be made. Adjustment of center frequencies
can be made in similar way as described with filters above and Q-factors can changed by selecting and turning clockwise
(up) or counter-clockwise (down). This confirmation can be done by pressing again. After the required value for each band
has been set, returning to the equalizer screen can be done by selecting the ‘BACK’ button.
The ‘BACK’ button in the left bottom corner of the equalizer screen can be selected and pressed to return back to the
output setup menu or the channel selection button below the VU of the currently selected output can be used to return to
the output setup menu..
currently selected parameter will be indicated in green and toggling between the different values is possible by pressing the
rotary function dial. If the parameter is set to the desired value, scrolling to the next field can be done by turning the function
dial. When adjusting the frequency, a 5 digit number is shown. The frequency value can be changed on a per digit base.
The selected digit (clicking rotary dial) turns from orange to red and can then be changed by rotating the dial. the digit can be
confirmed by pressing the rotary selection dial. Consecutive digits will increase when the maximum value has been reached.
After the desired frequency has been selected it can be confirmed by turning the function dial clockwise to the entire right side
where the ‘OK’ word will appear. After pressing again the frequency is confirmed and the next characteristic can be adjusted.
If all characteristics are set to the required value, select the ‘BACK’ option and you will be returned to the output setup menu.