Sennheiser AC 3200-II High-Power 8:1 Antenna CombinerThe AC 3200 II High Power 8: 1 Antenna Combiner from Sennheiser is designed for large multi channel wireless monitoring systems. It combines up to 8 channels for transmission via 1 antenna with a broadband design covering 500 to 870 MHz. It significantly reduces intermodulation of wireless monitoring transmitters while keeping backstage clutter to a minimum. Long distances can be covered reliably as the AC 3200 combiner accepts up to 250mW of input