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Issue 1
A120 Technical Specification
Rated Output Power (RMS)
1
120 Watt 83 Ohms
Output Voltages Obtainable
50V & 100V
Output Regulation
<1.3dB
Distortion (1KHz @ rated output)
1
<0.5%
Frequency Response –3dB @
30Hz – 20KHz
Input Sensitivity
Depends on IMP module used
Output noise (ref rated output)
-80dB
Supply Voltages
AC Supply 50 – 60Hz
220 – 240V
DC Supply
23 – 30V
Power Consumption
Quiescent AC
18VA
Quiescent DC
0.25A
Rated Output @ 1KHz, AC
300VA
Rated Output @ 1KHz, DC
9A
Fuse Protection
AC 5 x 20mm
3.15A (T)
DC 6.3 x 31.75mm
10A (F)
Battery 6.3 x 31.75mm
10A (F)
24V DC Aux output 5 x 20mm
1A (F)
Terminations
AC Supply Input
3 pin DIN - IEC 6A
DC Supply Input (battery)
3 pin screw terminated connector
Signal Input
240 deg 5 pin DIN locking
2
Aux Input / Output
240 deg 5 pin DIN locking
2
Loudspeaker
3 pin screw terminated connector
Dimensions
Depth (front to rear)
380mm (15”)
Width (rack mounting)
482.6mm (19”)
Width (free standing)
455mm (18”)
Height
88mm (3½”) 2U
Weight
7.6Kg (16¾ lb)
1
230V AC Supply
2
For connection details see relevant IMP instruction manual
Installation Notes
1.
The front of the amplifier is completed by the insertion of a combination of Input Modules and Infill Panels (BPl,
BP3).
2.
When a pre-amplifier is fitted, a Mixer Stage is normally used.
3.
Always ensure amplifier is turned off when inserting modules.
4.
Always earth equipment.
5.
Ensure correct fuses are inserted.
6.
Provide adequate air-flow around amplifier.
7.
When fitting DIN plugs, ensure screen connection does not touch the casing of the plug, thus avoiding earth loops.
AVOIDING GROUND LOOPS: As supplied all Adept main frames have the common
negative battery supply input bonded to the chassis, mains earth. For some applications it
may be necessary to remove this bond to avoid for example ground loops by disconnecting
the green yellow wire between pin 4 of input socket 8 and the chassis.
Ground loops on a system will cause a line frequency hum to be produced from the
loudspeakers and is best avoided using isolated input modules (for example IMPX selected
to line input, etc) especially if inputs are required to be wired in parallel.
Low Voltage Directive
73/23/EEC as amended
by 93/68/EEC
EMC Directive
89/336/EEC as amended
by 92/31/EEC and 93/68/EEC
Applies only when the items
are correctly fitted and operated
in or with products of our
manufacture and are installed
in a recommended enclosure
