The Sennheiser ACA 3 Antenna Combiner is a game - changer for wireless microphone coverage. Ideal for large churches, broadcast setups, outdoor sports events, and reality TV shows, it offers a compact and easy - to - deploy solution across multiple rooms and complex sites. This 2 x 4:1 antenna combiner from Sennheiser, known for its engineering excellence, works flawlessly with all Sennheiser analog and digital wireless stationary receivers in the 470 - 798 MHz frequency range. It delivers unity gain performance with top - notch reliability, enhancing signal quality and versatility. Each antenna input has a switchable DC supply, allowing you to use head amps or active antennas like AB 3, AB 3700, A12AD, AB 9000. It also isolates unused antennas for efficient operation. LED indicators show RF on, DC on, and DC current overload, making troubleshooting super easy. With its sturdy build and wide operational range, the ACA 3 is a must - have for professional audio setups. Key features include a 2 x 4:1 combiner at unity gain, switchable DC on each antenna input, RF isolation for unused antennas, and LED indicators. Specifications: Dimensions are 43x483x205 (HxWxD), 19', 1U; it has a BNC female 50 OHM connector, weighs about 2.75 kg, with storage temperature from - 20°C to +70°C and operating temperature from - 10°C to +40°C. Power supply is 100 - 240 V AC, 50/60 Hz. The package includes the ACA 3 Antenna Combiner, a power cable, and a user manual.
Using the Sennheiser ACA 3 Antenna Combiner is easy. First, connect it to a 100 - 240 V AC power source. Then, connect your Sennheiser analog or digital wireless stationary receivers in the 470 - 798 MHz frequency range to the appropriate ports. You can switch the DC supply on each antenna input if you want to use head amps or active antennas. Keep an eye on the LED indicators. They'll show you if the RF is on, the DC is on, or if there's a DC current overload. When not using an antenna, the combiner will isolate it for better efficiency. For maintenance, keep it in a dry place within the storage temperature range of - 20°C to +70°C. Don't expose it to extreme humidity (keep it between 5% to 95% relative humidity). When cleaning, use a soft, dry cloth. Avoid using abrasive materials or harsh chemicals. If you encounter any issues, refer to the user manual or contact Sennheiser support.
