Wendt NGS X4 Audio Mixer
Operating Instructions

Front Panel
Click on this image for a closer view

1. Fader Controls The faders are marked CHANNEL 1 thru CHANNEL 4 which correspond to the mic XLR inputs also marked CHANNEL 1 thru CHANNEL 4. These channel faders control the post preamp gain.

2. Master Fader The master fader marked MASTER controls the gain of all four channels and has a detent at the 0db reference position (normal operating position).

3. Battery Test The push button switch marked BATT allows a battery voltage test which is indicated on the right VU meter. A set of new batteries will indicate up to and including the 0db position on the meter.

4. VU Meter Illumination The VU meter illumination is controlled by a momentary push button switch called LAMP. The meters will be illuminated for approximately 12 seconds and then return to off.

5. Low Cut Filters The switches marked 140 20 100 insert a 12db per octave hi pass filter in each channel as follows: the 20 position is a flat response to 20HZ, and the 100 and 140 positions roll off at 100HZ and 140HZ.

6. Reference Tone The TONE button when pushed IN (push on/push off switch) enables a 400HZ reference tone oscillator which provides a 0db VU reference tone to the right and left line outputs. The push button OUT position disables the tone.

7. Slate Mic The push button switch marked MIC when pushed in, enables the slate function to be outputted to the left and right line outputs.

8. Power Monitor The LED marked BATT slowly flashes on and off under normal power voltage conditions and turns to a continuous ON when external power or battery voltages are dangerously low.

9. HP Monitor Control The switch marked L STEREO R allows the operator to switch the headphones to left ear, or stereo (normal position).

10. Meters The two meters, right and left, are calibrated in VU (PPM optional, BBC std.).

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