Ampetronic CLD1-CT

Ampetronic CLD1-CT Compact Loop Driver with Tie Clip Microphone & Loop Coil.


In Stock
SKU: CLD001CT Category: Tag:


Ampetronic CLD1-CT Compact Loop Driver with Tie Clip Microphone & Loop Coil.

The CLD1 Compact Loop Driver is designed for counter systems and small area perimeter loop systems. Measuring only 128 x 74 x 35mm and with an output current of 2.4A RMS, the CLD1 is the smallest and highest performance amplifier in its class. Designed and built to Ampetronic’s high standards of reliability, backed with a 5 year warranty and Ampetronic support, the CLD1 offers certainty of performance and the lowest lifetime cost available.

Audio quality is ensured with metal loss correction (MLC) combined with Ampetronic’s usual high standards of design. The Ampetronic CLD1 is designed for flexibility and convenience, featuring 2 separate microphone inputs with independent level controls, one of which can be configured as a line input.

All cable connections are made on a single face of the unit, adding flexibility and further simplifying installation.

The loop should be mounted vertically in accordance with the installation instructions. Other installation methods are also available. The CLD1 in this application will project a field to the requirements of IEC60118-4 approximately 1m from the preformed loop.

The Ampetronic CLD1 compact loop driver can be ordered as a stand alone loop driver or as part of a kit for a specific application

The Ampetronic CLD1-CT kit includes Compact Loop Driver with Tie Clip Microphone & Loop Coil.

Applications Include:

    • Ticket and service counters
    • Retail counters
    • Information kiosks
    • Reception desks
    • Interview rooms
    • Small meeting rooms
    • Taxis and private cars


• Low lifetime cost
• 5 Year warranty
• Very compact
• Choice of microphone and pre-formed loop in counter kit
• 2 independent inputs featuring 1 mic input and 1 switchable mic/line input
• Metal loss compensation
• All connections to a single face for installation convenience
• 12V DC or external AC power pack supplied as standard. CLD1-AC has integral power supply
• Free technical support


Power 12V DC @ 1.0A max.
Fuse fitted to PCB, type T 1.6A L
Green LED Power indicator
Input 1 Microphone input
Suitable for unbalanced electret microphone
3.5mm mono jack socket
Input impedance 8kΩ.
6v bias via 10kΩ source
Sensitivity -60 dBu for max output
Overload level -14 dBu.
Recessed control on front panel
Input 2 Switchable line / microphone
Recessed switch on connector panel
Microphone as for input 1
Line input:
Input impedance 820kΩ
Sensitivity -20dBu for max output
Overload: >+20dBu
Drive voltage >3.2VRMS >4.5Vpk at maximum output current
Drive current 2.4ARMS 3.4Apk continuous 1kHz sine wave
Short term peak >4.8Apk
LED indicator on front panel
Loop resistance 0.3Ω to 1.0Ω resistive or
Loop connector Vibration proof clamps, accept 0.5 to 1.3mm2
Idle 1/6 peak Output Current (Speech) 1/3 peak Output Current (Pink noise) Full Power
Driver Channels Current (ARMS) Load Resistance (Ohms) AC In (W) BTU AC In (W) BTU AC In (W) BTU AC In (W) BTU
CLD1 1 2.4 0.5 0.6 2 4 13 8 22 13.704 37

Frequency response 80Hz to 6.3kHz ±1.5dB
Automatic gain control AGC optimised for speech
Dynamic range >36dB
Green LED indicator on front panel
Metal loss correction 0 to 4.5dB/octave
Recessed control on front panel
Cooling Natural convection
Dimensions 128mm, 74mm, 35mm
Weight 280g
Environment IP20 : 20 to 90% relative humidity, -20ºC to 50ºC
Mounting Horizontal or vertical panel or wall mount, with 2 screw fixings