Sennheiser AC 3200-II

The Sennheiser AC 3200-II is an active high-power 8:1 antenna combiner designed for large-scale wireless in-ear monitoring systems.

Frequency range: 500-870 MHz broadband UHF covering multiple bands.
Configuration: 8 transmitter inputs → 1 antenna output (0 dB ±1 dB attenuation).
Power handling: Up to 250 mW/channel input; linear amplifiers prevent intermodulation.
Connectors: BNC throughout; front-panel LEDs indicate RF presence per channel.
Rackmount: 19" 1U (436 x 215 x 44 mm), 4 kg; 12V DC via NT12-125D PSU (90W max).

Datasheet