Shure 8-Channel Antenna Combiner for PSM Wireless Systems

Simplify and streamline your rack with the Shure 8-channel antenna combiner for PSM wireless systems. Includes eight LED meters for easy signal monitoring.

The Shure PA821B antenna combiner is the ultimate problem solver for products that are dependent on the simultaneous operation of many PSM and wireless microphone routes at a venue. As an active broadband antenna combiner with 8 inputs and output of the PA821B provides a significant improvement in reception quality and up to eight wireless transmitters can be combined in a single antenna. This will reduce intermodulation distortion and also avoid dropouts due to multipath interference.

The PA821B is compatible with the wireless personal monitors Shure PSM 900 and PSM 1000. It can also be used with all other in-ear monitoring transmitter and/ or antenna combiners of the intergrated passive combiner with two inputs and one output can be connected.


- Combines up to eight PSM transmitters to a single antenna set for improved RF networking & reduced rack clutter
- Wideband operation (470-865 MHz)
- Quieter fan for significant reductions in ambient unit noise - especially useful for installation work
- Temperature-sensitive fan power for significant reductions in ambient unit heat
- 8 Input LED Signals (green when active; off when inactive)
- LED indications of signal presence, signal overload
WARNING: Cancer and Reproductive Harm -

Dimensions and Weight in Packaging
470-865 MHz
Shipping Weight: 16.75 lbs
Shipping Dimensions: 28 x 18 x 4 in
Manufacturer Part Number (MPN): SHU PA821B
865-960 MHz
Shipping Weight: 17.5 lbs
Shipping Dimensions: 28 x 18 x 4 in
Manufacturer Part Number (MPN): SHU PA821BX

Consumer Alert

Most users do not need a license to operate this wireless microphone system. Nevertheless, operating this microphone system without a license is subject to certain restrictions: the system may not cause harmful interference; it must operate at a low power level (not in excess of 50 milliwatts); and it has no protection from interference received from any other device. Purchasers should also be aware that the FCC is currently evaluating use of wireless microphone systems, and these rules are subject to change. For more information, call the FCC at 1-888-CALL-FCC (TTY: 1-888-TELL-FCC) or visit the FCC's wireless microphone website at

NOTE: None of the wireless systems we carry are capable of violating the FCC guidelines stated above. We are presenting this information as a matter of legally required disclosure.

For support or warranty questions, please contact the manufacturer:
Phone: 800-516-2525

470-865 MHz

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