Compact loop driver boundary mic pre formed loop a6 loop present sign installation guide region specific power supply 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 24a rms the cld1 is the smallest and highest performance amplifier in itrsquos class designed and built to ampetronicrsquos high standards of reliability backed with a 5 year warranty and ampetronic support