Ampetronic CLS2 audio induction loop amplifier

The Ampetronic CLS2 is an induction loop solution aimed at the demands of the electrical and audio-visual contractor.

Designed for simple discreet installation, the CLS2 is the most capable driver in its class. The amplifier is very compact, yet the most powerful unit available designed specifically for wall mounting. All connections and controls are secured behind a tamper resistant, hinged, detachable cover. Combined with its small size, the range of mounting and cabling options ensure that installation is convenient and tidy in any environment. Input options are extensive, with three independent inputs for balanced microphone, balanced and unbalanced line, low impedance and 100V - line speaker systems, plus priority alarm, doorbell or telephone connections.

Backed by Ampetronic’s standard 5 year warranty and comprehensive support services, the CLS2 is truly fit and forget.

Features
• Quick and simple to install
• Area coverage to >250m2 square (to >400m2)
• Highest power Loop driver in class
• 4 independent configurable inputs
• Wall mounted
• Metal Loss Correction
• 5 Year warranty
• Cabling and controls behind tamper resistant cover
• 2 Priority alarm inputs
• Free Technical support

Delivery Includes
1 CLS2
1 Loop sign
1 Installation & Commissioning Handbook
1 P-clip, nut & washer

Technical Data
INPUT 1 (MIC/Line)
Input Impedance: 10kW per side
Sensitivity: -73/-31dBu
Overload: -37/+5dBu
INPUT 2 (MIC)
Input Impedance: 10kW per side
Sensitivity: -73dBu
Overload: -37dBu
INPUT 3 (Line)
Input Impedance: 1MW per side
Sensitivity: -33dBu
Overload: +3dBu
V+: 12Vdc 100mA max
INPUT 4 (100V/speaker)
Input Impedance: 120kW/7.8kW
Sensitivity: +15/-9dBu
Overload: >+47/>+27dBu
Alert 1 520Hz tone
Input range: 5-24V ac or dc (if dc
observe polarity)
Alert 2 pulsed 520Hz tone
For connection to a pair of
contacts. Closed energises alert.
AC Power
Voltage: 230V
Frequency: 45-65Hz
Power consumption: 30W
Fuse: T250mA L fitted into
terminal block.
SIGNAL PROCESSING
AGC (Automatic Gain control)
Dynamic range: 36dB
Output level: -6dBu (±1dB)
Attack: 3.8ms
Decay: 1.7s
MLC (Metal loss correction)
Frequency response adjustment
From flat to +3dB/octave centred
around 1kHz
OUTPUTS
Loop Output
Max. Voltage: 9Vpk, 6.4Vrms
Max. Current: 7Apk, 5Arms
Short term peak current: >10A
Continuous max. current:
2.3Arms
Frequency response: 80Hz –
6.3kHz (-3dB)
Distortion: <0.5% @2.3Arms
Min loop resistance: 0.2W
Max loop impedance: 1.3W
(@1.6kHz)
PROTECTION
Current Limit
Peak current limited to approx.
14A
Thermal protection
The output is muted if the internal
heatsink reaches 90°C.
Approaching this figure the
output is attenuated to a
maximum of 3dB to prevent
nuisance tripping.
PHYSICAL
Dimensions: 200x200x44mm
Weight: 1.8kg
Operating temperature: -10 to
40°C
IP rating: IP20