Details of all products and services provided by Ampetronic can be found at
www.ampetronic.com
Wall mount brackets are available for mounting the amplifier on the wall with
appropriate fixings. A 1U rack mount tray is available which can be used to
mount up to two ILD122’s. Blanking plates can be used to cover unused
sections.
Microphone pre-amplifiers for 1, 2 or 5 microphones, as well as other line
level signals. These can be powered from either the ±15V DC power socket
on the rear of the unit, or a stand alone power supply.
Signal processing units are available for use with low spill array systems.
Input adaptors for a range of applications such as 100V line audio & low Z
speaker systems are available.
3) Instability can cause the amplifier to run hot and may result in the
OVERHEAT LED illuminating.
Interference
1) Background magnetic field signals or interference may be present in any
location and may not be anything to do with the loop system. Monitor this
with a loop receiver (such as an ILR3). If the interference is still present with
the loop system switched off, then you need to locate and eliminate the
source of interference before switching the loop system back on.
2) Magnetic fields can be induced into any low impedance electrical path or
loop. Multiple ground earth systems may experience the pick up of the loop
signal, and cause difficulties with other systems that are not designed to
reject such interference. Check entire sound system for evidence of loop
signal, and trace source of pick-up.
3) Under certain circumstances, the loop signal may appear as jagged lines
or hum bars on a CCTV picture. This could be due to running CCTV (low
impedance unbalanced 2-wire circuit) cables in close proximity to the loop
cable. Separate the cables to reduce the effect.
4) Remote (and apparently unconnected) PA systems can sometimes pick
up loop signals. This is usually because the loop cable becomes damaged
(see point 1 of Instability) or induces signals into the remote system through
long unbalanced cables. Always run long audio signal cables as 3-wire
balanced circuits and keep away from loop cables.
5) See also point 1 of Instability.
ACCESSORIES
AC Power Supply:
3-pole IEC320 connector.
Output:
35W nominal for either version.
Wieland ST17/2 connector.
45-65Hz
Current: >5A peak (3.5A
) into 1
W
RMS
Voltage: >10V peak (7.1V
)
RMS
230V Version
Loop Resistance: 0.2
W
to 1.8
W
Nominal: 230V AC
resistive or 2.0
W
max impedance
Fuse: T 250mA L
reactive at 1.6kHz.
Range: 207-253V AC
THD+N <0.2% @ 1kHz @ 5.0A
pk
Quiescent: 60mA
Typical: 150mA
Frequency Response:
(O/P 1.7A
pink noise)
RMS
Measured at low level with no metal
loss correction.
120V Version
80Hz to 6.5kHz -3.0dB
Nominal: 120V AC
100Hz to 5.5kHz ± 1.5dB
Fuse: T 500mA
Range: 108-132V AC
Metal Loss Correction:
Quiescent: 120mA
0dB (flat) to 3dB/Octave boost.
Typical: 300mA
Gain at 1kHz remains constant.
(O/P 1.7A
pink noise)
RMS
Loop Monitor:
Microphone Input:
3.5mm 3-pole (stereo) jack socket
XLR socket.
0.7Vpk at 7.0Apk output
Input Impedance: 200-600
W
Sensitivity: -70dBu (245uV
) for full
RMS
±15V 150mA DC Output:
output.
3 pin power Mini DIN socket.
Overload: >-5dBu (436mV
)
RMS
Regulated DC output for powering
Ampetronic pre-amps & acessories.
Line Input:
6.4mm 3-pole Jack socket.
Environmental:
Input Impedance: 1M
W
Ventilation: See
Installation
section
Sensitivity: -30dBu (24mV
) for full
for details.
RMS
0
0
Ambient temperature: -10 C to +40 C
output.
Relative Humidity: < 90%
Overload: >+20dBu (7.75V
)
RMS
Slave I/O:
6.4mm 3-pole Jack socket.
Input Impedance: 100k
W
Source impedance: 220
W
Output level: 0dBu (0.775V
)
RMS
Compression (AGC):
Standards:
>36dB dynamic range
Meets relevant CE, EMC and
Controlled by adjusting input level.
safety standards.
Loop Design:
Depends on application, see
Please contact Ampetronic if you need
Designing induction loops handbook
further assistance.
or consult Ampetronic.
IP rating: IP20
Physical:
Weight: 2.7kg
Width: 215mm
Depth: 210mm
Height: 44mm
½ rack width, 1U high.
TECHNICAL SPECIFICATIONS
