Alto AMX-80 Kullanıcı Kılavuzu - Sayfa 10

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4. CONTROL ELEMENTS

The MAIN SECTION

12 PWR LED

This LED will turn on when the AC Adaptor is connected to an AC outlet

and the main switch on the back panel is on ON position

13 LED METER

There are four LEDs for each Left and Right channel with thresholds ranging from

20dBu up to +18dBu. The 0dB LED corresponds to an output level of about

0dB. The CLIP LED comes alive when the output is about +18dBu. Actually we

have built a safety threshold before actual distortion and clipping occur but please

turn down the MAIN MIC control knob so that the CLIP LED only blinks occasionally.

In normal operating conditions the LED Meter will display the main mix level after

the MAIN MIX control but if the 2TK TO PHONES switch is pressed in the LED

Meter will show the level of the signal applied to the TAPE IN sockets.

A CLOSER LOOK: The LED Meter is

your best friend in adjusting the Mixer audio

levels for optimal performance. Usually you

get a good mix when the LED Meter

flashes in between -20dB and +6dB. If the

Meter flashes a lot at PEAK, you will get

distortion. If no Meter activity at all, you

will get a lot of noise at the output. Once

you have adjusted the mixer levels for no

noise and no distortion, you can adjust the

levels of the external amplifier or powered

speakers for the desired overall volume.

14 MAIN MIX LEVEL

This large blue knob controls the final level of the main mix signal sent to the

MAIN OUTPUT, TAPE OUT (RCA sockets), PHONES output and the LED Meter .

For optimal operation the MAINMIX LEVEL knob should be positioned in

between(0) and 3 o' c lock.

OUTPUT LEVEL

-20

MAIN MIX LEVEL

PWR

CLIP

+15