Nady Systems FS4N manual Controls and Connections, Front Panel

CONTROLS AND CONNECTIONS

FRONT PANEL

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1.POWER SWITCH

To turn the unit ON or OFF, press the upper or lower portion of this button.

2.POWER LED INDICATOR

This LED illuminates when the power is turned "ON".

3.AUDIO SPECTRUM ANALYZER DISPLAY

This in-line 8-band audio spectrum analyzer enables quick identification of the frequency range of any problem frequency and allows monitoring of the amount of reduction selected in any of the notches.

The display monitors both the input and output levels as selected by the Bypass switch (5). It monitors the output when the switch is IN (down), and the input when the switch is OUT (up) for bypass mode. The audio spectrum display has a range of 25Hz to 16 KHz in 8 frequency bands, with 6 LEDs in each tree indicating levels

from +3 to –20dB.

4.NOTCH FILTERS

Use these notch filters to control up to four different feedback (howling or screeching resonances) frequencies independently.

a.FREQUENCY SELECT CONTROL

Adjust the desired suppression frequency for each notch independently with this control. The filters are extremely narrow (1/60 octave) so take care in properly tuning out the desired feedback.

b.SCALE FREQUENCY MULTIPLIER SWITCH

Use this switch to select either X1 (up) or X10 (down) multiplier of the frequency scale on the Frequency Select Control as needed to "tune in" on the desired suppression frequency.

c.NOTCH DEPTH CONTROL

Use this control for precise adjustment of the amount of attenuation (up to -20dB) necessary to suppress the selected feedback frequency. For the least effect on your overall sound, adjust the attenuation to just below the amount needed to suppress feedback.

5.BYPASS IN/OUT SWITCH

Use this switch to select all 4 notches simultaneously either IN (down) or bypassed OUT (up) for fast monitoring of results during use.

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