AUSTRALIAN MONITOR ACM120XL Betriebshandbuch - Seite 2
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Seite druckenACM120XL, 120 Watt Mixer Amplifier
Product Description
The ACM120XL is a 120 watt mixer amplifier designed for commercial installations. It features 8 microphone/line input
channels and can be used for either low impedance (4 or 8 ohm) or 70v/100v line speaker systems. A host of unique
features including multiple levels of muting, a VOX relay output and VCA master level control make the ACM120XL a
very flexible amplifier. The unit can be mounted in a standard 19" equipment rack (rack ears supplied) or it can be used
on a shelf or table.
Front Panel Features
Microphone/Line Level Controls
The level controls for the 8 inputs are labeled Ch 1-Ch 8. These level controls are used to set up a suitable "mix" of all
the various input sources connected to the ACM120XL. For example, microphones, CD players, cassette decks etc.
Once a suitable mix of all inputs has been set up, the overall level can then be adjusted by the "Master" level control on
the far right of the ACM120XL front panel.
Bass Control
The Bass control is part of a 3-band equalization system within the ACM120XL. The Bass control allows the user to
increase or decrease the amount of bass in the system. The control allows for 12dB of cut or boost at 100Hz. If no bass
cut or boost is required, the control should be left in the center (0) position.
Middle Control
The Mid control is part of a 3 band equalization system within the ACM120XL. The Mid control allows the user to
increase or decrease the amount of mids in the system. The control allows for 10dB of cut or boost at 600Hz. Depending
on the speakers and application, a small cut (decrease) in the mids normally makes the system sound 'warmer'. If no mid
cut or boost is required, the control should be left in the center (0) position.
Treble Control
The Treble control is part of a 3 band equalization system within the ACM120XL. The Treble control allows the user to
increase or decrease the amount of treble in the system. The control allows for 10dB of cut or boost at 10kHz. Generally,
a small increase of the treble control makes a system sound 'brighter'. If no treble cut or boost is required, the control
should be left in the center (0) position.
Master Control
The master control sets the overall output level of the ACM120XL. It is used in conjunction with the input level controls.
When setting up levels, please ensure that proper gain structure practices are followed. In other words, it is not
advisable to run the input channels at 10 and the output level at 1. Instead, aim to keep all of the input controls and the
master control at around the same level.