Ampetronic CLD1-AC Small Area and Counter Loop Driver
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The Ampetronic CLD1-AC Small Area and Counter Loop Driver is designed for the same applications and to the same specifications as the CLD1, however the CLD1AC is fitted with an internal power supply for standalone applications.
Ampetronic CLD1-AC Small Area and Counter Loop Driver
The Ampetronic CLD1-AC Small Area and Counter Loop Driver is designed for the same applications and to the same specifications as the CLD1, however the CLD1AC is fitted with an internal power supply for standalone applications.
The CLD1AC Compact Loop Driver is designed for counter systems and small area perimeter loop systems. Measuring only 180 x 74 x 35mm and with an output current of 2.4A RMS, the CLD1AC is the smallest and highest performance amplifier in it’s 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 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.
CLD1-AC Small Area and Counter Loop Applications Include:
- Ticket and service counters
- Retail counters
- Information kiosks
- Reception desks
- Interview rooms
- Small meeting rooms
- Taxis and private cars
Features:
- 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
- Integral power supply
- Free technical support
Kit Forms
The CLD1-AC compact loop driver can be ordered as a stand alone loop driver or as part of a kit for a specific application.
Counter loop kits comprise 1 x CLD1AC, 1 x pre-formed loop, 1 x microphone (choice), 1 x loop present sign, 1 x installation guide and 1 x power supply (region specific).
| Kit Code | Contents |
|---|---|
| ACCLD001UKCB | CLD1-AC Induction Loop Driver UK Cordset with Boundary Mic + Loop Coil |
| ACCLD001UKCD | CLD1-AC Induction Loop Driver UK Cordset with Desktop Mic + Loop Coil |
| ACCLD001UKCT | CLD1-AC Induction Loop Driver UK Cordset with Tie-clip Mic + Loop Coil |
| ACCLD001UKCX | CLD1-AC Induction Loop Driver UK Cordset no Mic, with Loop Coil |
| ACCLD001UKXX | CLD1-AC Induction Loop Driver UK Cordset, no Mic, no Loop Coil |
Counter Loops
When supplied as a counter loop kit, the CLD1AC comes with choice of 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 CLD1AC in this application will project a field to the requirements of IEC60118-4 approximately 1m from the preformed loop.
Perimeter Loops – Area Coverage (maximum)
The CLD1AC is designed for small perimeter loop applications in rooms or in vehicles. Coverage with a single turn loop:
Room aspect ratio: 1:1 2:1 3:1
Maximum area coverage m2: 20 30 35
- The CLD1 is DC powered making it ideal for use in small vehicles such as taxis, private cars and small boats. We recommend a multi-turn loop in the headlining of the vehicle cabin – contact Ampetronic for an application guide.The loop is 1-2m above or below the receiver height
- There are no metal structures in the plane of the loop
- There is sufficient voltage to drive the cable length – check table below.
Maximum Cable Length
With maximum current output the CLD1AC can drive:
- Loops with DC resistance from 0.3 to 1.0Ω
- Impedance up to a maximum of 1.3Ω
When operating below maximum output, the CLD1AC can drive longer cable lengths – contact Ampetronic for more details.
Maximum cable length is dependent on cable type and on the application.
| Cable type | Maximum Cable Length (m) |
| 0.75mm2 copper | 44 |
| 1.0mm2 copper | 57 |
| 1.5mm2 copper | 71 |
| 1.8mm2 flat copper | tape 101m |
CLD1 Specifications
INPUTS
| Power | All integral 100-240v AC 18W max. Regional plug also available. 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 |
OUTPUTS
| 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 |
THERMAL HEAT CHART
| 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 |
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 | 180mm, 74mm, 35mm |
| Weight | 400g |
| Environment | IP20 : 20 to 90% relative humidity, -20ºC to 50ºC |
| Mounting | Horizontal or vertical panel or wall mount, with 2 screw fixings |
