Compact Loop Driver
- Low lifetime cost
- 5 Year Warranty
- Desk 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
Product Details
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 it’s class. Designed and built to Protec’s high standards of reliability, and backed with a 5 year warranty, the CLD1 offers certainty of performance and the lowest lifetime cost available.
Audio quality is ensured with metal loss correction (MLC) combined with Protec’s usual high standards of design. The 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.
Applications include
- Ticket and service counters
- Retail counters
- Information kiosks
- Reception desks
- Interview rooms
- Small meeting rooms
Counter Loops
When supplied as a counter loop kit, the CLD1 comes with a desk microphone, a multi-turn preformed loop power supply and simple installation instructions.
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.
Inputs
Power | 12V DC @ 1.0A max. Fuse fitted to PCB, type T 1.6A L Green LED Power indicator. |
AC Power adapter | All integral 100-240v AC (CLD1/AC) 18W Max Regional plug also available |
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. |
Outputs
Drive voltage | >3.2Vrms >4.5V peak at maximum output current |
Drive current | 2.4 Arms 3.4A peak continuous 1kHz sine wave Short term peak >4.8A peak LED indicator on front panel |
Loop resistance | 0.3Ω to 1.0Ω resistive or <1.3Ω maximum reactive impedance |
Loop connector | Vibration proof clamps, accept 0.5 to 1.3mm² |
Audio System
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 |
Physical
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 |
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