Bedienungsanleitung Yamaha MG20XU (Seite 17 von 40) (Englisch)

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MG20XU/MG20/MG16XU/MG16/MG12XU/MG12 Owner’s Manual

Controls and Connectors

r [PAD] switch

When this switch is turned on ( ), the input signal from

the [MIC/LINE] jack of the mono input channel is attenuated

by 26 dB. Turn this switch off ( ) if you’ve connected a

microphone or other device with a low input level to the

channel. Turn it on ( ) if you’ve connected a line-level

device.

NOTE

There may be some noise when operating switches. To prevent

this, turn the [ON] switch of a channel off before operating

other switches.

t [HPF] (High Pass Filter) switch

Turning this switch on ( ) will apply a high-pass filter that

attenuates frequencies below 80 Hz in the signal by a slope of

12 dB/octave.

NOTE

Turning the [HPF 80Hz (MIC)] switch on will apply a dedicated

high-pass filter only to the signal from the [MIC] jacks.

y [GAIN] knobs

For adjusting the gain of the input signal. Mono input chan-

nels have a [PAD] switch r that lets you change the range of

this control.

The adjustable gain range is as follows.

u [COMP] knobs

For adjusting the amount of compression applied to the chan-

nel. As the [COMP] knob is turned to the right the threshold,

ratio, and output gain are adjusted simultaneously.

• Threshold: +22 dBu to -8 dBu

• Ratio: 1:1 to 4 :1

• Output gain: 0 dB to +7 dB

• Attack time: Approximately 25 ms

• Release time: Approximately 300 ms

NOTE

Avoid setting the compression too high; since the resulting

higher average output level may lead to feedback.

i [PHANTOM +48V] switch and indicator

This switch toggles phantom power on and off. Turn this

switch on ( ) to supply DC+48 V to the XLR input jacks.

The indicator lights when this switch is on. Turn this switch

on when using one or more phantom-powered condenser

microphones.

NOTICE

• Be sure to leave this switch off ( ) if you do not need

phantom power.

• When turning phantom power on ( ), pay careful

attention to the following to prevent damage or noise in

the mixing console or connected equipment.

- Turn this switch off if equipment that does not use

phantom power is connected to the XLR input jacks.

- Do not disconnect XLR connector cables while this

switch is on.

- Set output controls such as the [STEREO] master

fader and the [GROUP] fader to their minimum levels

before turning phantom power on or off.

o [LINE /USB ] switch (XU models)

Switches the audio source input on CH19/20 USB IN {CH15/

16 USB IN} {CH11/12USB IN} between the [LINE] stereo

input jack and the [USB 2.0] jack.

NOTE

The volume input from computers through [USB 2.0] jack can

be adjusted by Attenuator Function. Please see Attenuator

Function (page 28).

[PAD] switch Range

ON -6 dB to +38 dB

OFF +20 dB to +64 dB

MG20XU/MG20: 1 – 12 13/14 – 19/20

MG16XU/MG16: 1 – 8 9/10 – 11/12

MG12XU/MG12: 1 – 4 5/6 – 7/8

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Yamaha MG20XU Seite 17

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