Key Features; General Hints For Installation And Start Of Operation - IC Audio AMP 120 Bedienungsanleitung

If the following circumstances will occur, please immediately switch off the power and
disconnect the power supply cord. Do not try to operate the device again. Contact your
local dealer to check the unit:
damages are visible
n
the device has fallen
n
the device contains loose parts or any liquid gets into the unit
n
the device shows malfunctions
n
smoke or strange smell is coming out of the device
n
the power supply cord is damaged, such as exposure of the core, disconnection etc.
n
the device has been stored for a longer period under bad conditions such as open air or in damp
n
rooms
the device has been exposed to hard transport conditions like badly packing
n
This appliance may only be used in accordance with its intended purpose: Power amplifier in a
public address or voice alarm system.

5. Key Features:

Power Amplifier with floating 100V and 8 Ohms-transformer outputs
n
Mains and 24 V DC battery power operation
n
Second 100V-output to be controlled via external dry contact (SPEECH ONL Y)
n
Remote controlled power relay (only for mains power)
n
Unbalanced and electronically balanced inputs with loop outputs
n
Second priority input with switchable MIC/LINE sensitivity and VOX-control
n
Supply voltage monitoring of mains and battery power by dry changeover relay contact
n
Well-proven, stable analog design
n

6. General hints for installation and start of operation:

6.1 Microphone installation cables should not be run near by other cables like 100V-speaker lines,
mains cables, telephone or data lines.
6.2 In the same way 100V-speaker lines should not be run near by other sensitive lines like
microphone, telephone or data cables.
6.3 Microphones have to be wired only as low-impedance and balanced circuitry.
6.4 Total speaker impedance has to be measured before connecting speaker line(s) to an amplifier.
A special impedance measuring device has to be used such as ic-audio ZPM 4000 or ZPM 3100,
not a standard DC multimeter! Impedance may not be less than the rated value in the technical
specifications below. It is not damaging, if impedance is considerably higher than the rated value,
but amplifier power is then used only in part, so where applicable use an amplifier of lower power
class.
6.5 The devices are designed for being mounted into a 19-inch rack. Cooling is ensured by
temperature controlled fans. At AMP 120 and AMP 240 fresh air is drawn from holes in the bottom
and sides of the housing and will be blown out to the rear side, whereas fresh air is drawn through
slots in the front side at AMP 480. Please make sure, not to block circulation of air when mounting
the devices into a rack. If several units are mounted into a rack, ventilation rack-panels (1 unit
each) should be used between the devices. In the bottom or top cover additional fans have to be
located. Inside the rack temperature may never rise to more than 40°C.
AMP 120/240/480
EN
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ic audio