AMC MMA 240X Руководство пользователя - Страница 6

Просмотреть онлайн или скачать pdf Руководство пользователя для Усилитель AMC MMA 240X. AMC MMA 240X 16 страниц. Mixing amplifier
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Functions description

FRONT PANEL MICROPHONE INPUT

This balanced 6,3mm jack input is in parallel to first microphone input in the rear panel. The gain and

phantom power for this input are selected by using gain control knob and phantom power switch located

in the rear panel. Please note: don't use front and rear first microphone input at the same time.

SLOT FOR

MUSIC SOURCE MODULE

This slot is designed to install music source module to MMA 120X or MMA240X amplifiers. Please find

installation manual in page 8.

INPUT VOLUME CONTROL

These rotary knobs are for adjusting volume level of the audio inputs. All balanced XLR inputs are suitable for

line level as well as microphone level audio signals, if corresponding input gain is adjusted. The input gain

control is located in the rear panel. The phantom power and priority can be activated for first two inputs

separately in rear panel too.

SIREN SWITCH

There is designed siren sound generator inside the amplifier. Press the siren button located in the front panel

to activate it. Siren level can be adjusted by using Chime/Siren level control located in the rear panel.

MASTER VOLUME CONTROL

This knob is designed to adjust main volume of the amplifier.

CHIME SWITCH

There is designed chime sound generator inside the amplifier. Press the chime button located in the front

panel to activate it. Chime level can be adjusted by using Chime/Siren level control located in the rear panel.

ALL ZONE SELECTION SWITCH

This switch activates all zones for broadcasting announcement or background music.

ZONE SELECTION SWITCH

These switches controls amplifier's output in order to broadcast announcement or background music to the

desired zone.

EQUALIZER

Graphic equalizer allows to adjust sound frequency at 125Hz, 250Hz, 500Hz, 1kHz, 2kHz, 4kHz, and 8kHz points

in ±12 dB range.

POWER SWITCH

Use this switch to power on or off the amplifier. The power LED in the front panel lights up if the amplifier

is powered on.

POWER INDICATOR

This LED indicates status of the main power. The LED lights up if the amplifier is powered on.

SIGNAL INDICATOR

LED in the front panel indicates audio signal of the amplifier.

PROTECT INDICATOR

This LED lights up for a few seconds after the MMA 120X or MMA 240X is powered on and then turns off if

the amplifier is not damaged. It is normal for the protection LED to fade slowly when the amplifier is

powered off.