Editing Filter Parameters; Auxiliary Menu - Optimus LS-320 Manual De Instalación Y Funcionamiento

To change filter, you have to press FILTER SEL and adjust jog wheel to select filter (No.1 to 12).
Using CH key you can choose CHL or CHR or both of them simultaneously. Under SET menu,
press FILTER MODE and turn jog wheel to choose quantity of SING filters. If set 8 SING filters
means No 18 are SING filters and No 8-12 are AUTO filters. If it shows "LK" (Lock), than means
one SING filter is suppressing the feedback frequency.
4.2.3

Editing filter parameters

It is possible to change the filter parameters and Q value of SING mode. In AUTO mode you are
allowed to check the parameters and preset Q value. When in SING mode, just simply press
FITLER MODE and PARAM PUSH to adjust the parameters.
4.2.4

Auxiliary menu

Press FILTER SEL and FITLER MODE simultaneously to enter into auxiliary menu. Press FILTER
MODE to navigate the menu. Press FILTER MODE again and press PUSH key to enter into
parameters adjustment interface. Rotate the Job wheel to adjust parameters, and then press
FILTER MODE to save and exit.
Auxiliary menu contains the following options NOISEGATE, HPF, LPF, Q, DISPLAY and
SENSITIVE.
NOISEGATE has three submenus:
o ATTACK (0,1 ms ~ 100 ms)
o RELEASE (1 ms ~ 5000 ms)
o THRESHOLD (OFF, -66 dB, -24 dB).
HPF has two submenus:
o HPF ON/OFF
o FREQ (10 Hz ~ 300Hz)
LPF has two submenus
o LPF ON/OFF
o FREQ (10 kHz ~ 20 kHz)
Q can be set to 1/10 or 1/5, which is effective when finds a new suppress point.
LED DISPLAY current channel input level or output level. SENSITIVE has 5 grades. The
first grade is the highest sensitivity; the fifth one is the lowest.
LS-320 Version 3.0
Feed Back Suppressor
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