The AMIS120 is a 4 channel, 120 watt mixer amplifier suitable for rack or desk
mounting. The amplifier is a self contained compact unit of solid steel
construction. The amplifier may operate from mains power or 24V DC.
The AMIS120 has four universal input channels with separate level controls.
Each channel will accept balanced or unbalanced microphone, line and auxiliary
inputs. The unit has industry standard XLR microphone sockets and dual RCA
auxiliary sockets for each channel. Line input 4 has a lower input sensitivity
and is suitable for high level CD players. An insert point is also featured on
the rear panel for those applications where an additional EQ or feedback
exterminator may be required.
The AMIS120 features 100 volt, 70
volt, 4 & 8 ohm isolated transformer outputs, plus a tape recorder output by
means of dual RCA sockets. A balanced 700mV XLR output is also provided to feed
up to six power amplifiers. A vox triggered relay output is also available on
the rear panel for activation of external devices from the vox muting circuit.
In most cases this would be used as a muting bypass relay, which when used with
the appropriate external attenuator will maintain preset paging levels
irrespective of the attenuator setting.
Speaker Zone Selector
position push button speaker zone selector with overriding "all call" is located
on the front panel. Each of the six zone selectors switch the 100 volt speaker
line output to six separate speaker zones. The "all call" selector overrides all
6 zones regardless of their on/off condition and places the 100 volt output to
all six zones.
The AMIS120 comes standard with an
in-built four tone generator module. Tones include Bell, Pre-Announce Chime,
Alert Tone (AS2220.1) and Evacuate Tone (AS2220.1). Any of these tones may be
activated from a simple contact closure connected to the rear panel of the
amplifier. A Pre-announce defeat switch is located on the front panel.
The master volume can be controlled remotely. External VCA control
would normally be via a 500K pot connected to a two wire rear panel barrier
VOX muting is standard on the AMIS120. A mic or line
signal on channels 1 or 2 will mute channels 3 and 4. The muting function can be
disabled via an internal link.
Phantom Power (18V DC) is
available from all mic inputs. A rear panel phantom power on/off switch is also
Internal current limiting protects the amplifier
from both overload and overdrive conditions. Australian Monitor Installation
Series amplifiers feature a protection network that provides greater stability
and performance. Our amplifiers are recognised worldwide for their reliability
and this is due to the extensive levels of current limiting which protect the
amplifiers from both overload and overdrive conditions.