Alto APM80.1000 User Manual download pdf (Page 9)

MIC IN (bal.)

CH 6

CH 7-8

4.1 MONO/STEREO Input Channel Section

Your comprises 6 mono input channelsAPM80.1000

and 2 stereo input channels, each of them including -20dB

PAD, 3-band equalizer, AUX sends, PAN and LEVEL con-

t ls. The following content will detail the each part.ro

MONO Input Channels (1 ~ 6)

There are CH1 through CH6, which comes with MIC IN

and LINE IN connector. Use the XLR MIC IN connector

to connect low noise microphones preamp and low level

signal, which also feature +48V phantom power, allowing

you to connect condenser microphones. Use the 1/4" TRS

LINE IN connector to connect either a microphone or a

line level instrument such as synthesizers, dr m machines,u

effects processors...

Note: You shall never connect an unbalanced microphone

to the XLR connector if you do not want to damage both

the microphone and the mixer.

STEREO Input Channels (7 ~ 10)

DSP/FX

AUX2

POST

+10dB+10dB

0dB

HIGHHIGH

MIDMID

LOWLOW

MON

AUX1

PRE

PAN

+15dB+15dB

12KHz12KHz

2.5KHz2.5KHz

80Hz80Hz

+15dB+15dB

+10dB+10dB

-20 dB

PAD

RightRight

-15dB-15dB

LeftLeft

0dB0dB

LEVEL

-20dB PAD Button

Pressing this button will attenuate the input signal by 20dB.

In such way you can produce increased headroom and

reduce the risk of distortion because of level peaks at input

level when the input signal is quite hot.

EQUALIZER

APM80.1000 features a 3-band equalizer allowing you

adjust the high, mid and low frequencies separately on

each channel. All bands provide up to 15dB of boost or

cut, flat at the center detent.

HIGH

This is the treble control. You can use it to get rid of high

frequency noises or to boost the sound of cymbals or the

high harmonics of the human voice.

MID

This is the midrange control. It can affect most fundamental

frequencies of all musical instruments and human voice.

An attentive use of this control will give you a very wide

panorama of sound effects.

LOW

This is the bass control. It is used to Boost male voice or

kickdrum and bass guitar. Your system will sound much

bigger than what it is.

There are CH7 through CH10. They are organised in stereo

pair. Via the 1/4" TRS input connectors, you can connect the

outputs from stereo devices such as synthesizers, effects

processor or any stereo line level signal. If only the right jack

was connected, the input will operate in mono mode. Via the

XLR MIC IN connector, you can input the low level signal.

LINE IN

(bal.)

(MONO)

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 22 23

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Alto APM80.1000 User Manual Page 9

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