The Sennheiser AB 4-AW+ is an inline filter-type antenna amplifier with BNC connectors for the 470–558 MHz band, designed to compensate for losses in long antenna cables.
The Sennheiser AB 4-AW+ is an inline filter-type antenna amplifier with BNC connectors for the 470–558 MHz band, designed to compensate for losses in long antenna cables.

The Sennheiser AB 4-AW+ is an inline filter antenna amplifier with BNC connectors. It is designed to compensate for signal attenuation caused by long antenna cable runs in wireless systems.
The AW+ variant operates in the 470–558 MHz range. The amplifier provides a typical gain of 12 dB, has an impedance of 50 Ω, and supports a bandwidth of up to 88 MHz. It is compatible with earlier Sennheiser evolution wireless systems.
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