The Sennheiser ACA 3 (390038) is a professional active antenna combiner designed to streamline RF distribution in multi-channel wireless microphone systems. It allows up to four diversity receivers to share a single pair of antennas, significantly reducing cabling complexity while maintaining reliable RF performance.
Optimised for Sennheiser evolution and professional wireless systems, the ACA 3 provides integrated RF amplification to compensate for splitter losses, helping preserve signal integrity across the system. Housed in a robust 1U rackmount chassis, it is ideal for touring, broadcast, theatre and fixed installations where clean RF management, space efficiency and system reliability are essential.