Designed specifically for conducted EMC testing, this mismatch tolerant Class A amplifier series is ideally suited to provide power into a CDN for IEC 61000-4-6 conducted susceptibility testing up to and beyond the normal 10 V emf test level. The Class A design ensures a high reliability, low distortion linear performance across the frequency range. This design also ensures that the amplifiers will continue to operate at full power even when presented with an open or short circuit at its output. The units are powered from a switched mode power supply for high efficiency, high power factor and wide voltage range operation. Aiir-cooled with integral fans, and are protected against faulty cooling by excess temperature sensing. Front panel indicators are provided to indicate over-temperature.