Sennheiser AB4 – GW Band
The Sennheiser AB4 – GW band is a filtered inline RF booster module. Designed to offer +10dB typical boost to compensate for signal losses created by long antenna cable runs. Essential for any professional wireless microphone set up or installation. The GW band (558 – 626 MHz) filter removes all unwanted frequencies from reaching the receiver, allowing a better quality signal and performance.
The AB 4 is fully compatible with all legacy evolution wireless systems. Additionally, the AB 4’s filters have been expanded to support the bandwidths up to 88 Mhz for use with the newer Evolution Wireless G4 systems.