Sennheiser AB 4-AW+ Inline Antenna Booster (470-558 MHz, +10 dB Gain)

Band-specific inline antenna booster for Evolution Wireless systems in the AW+ frequency range

The Sennheiser AB 4-AW+ is an inline antenna booster with +10 dB of gain, designed for the AW+ frequency range (470-558 MHz). This booster is inserted between the antenna and the wireless receiver using BNC connectors to compensate for signal loss caused by coaxial cable runs, antenna splitter insertion loss, or antenna placement at a distance from the receiver equipment.

Unlike the wideband AB 3700, the AB 4-AW+ is tuned to a specific frequency range, providing optimized performance and filtering within the AW+ band. This band-specific design reduces the risk of out-of-band interference being amplified along with the desired signal, making it a cleaner solution for installations in congested RF environments where multiple wireless systems and broadcast signals coexist.

Key Features

• +10 dB active gain for the AW+ band (470-558 MHz)
• BNC connectors for inline installation
• Band-specific filtering reduces out-of-band interference amplification
• Compact inline form factor
• Designed for Sennheiser Evolution Wireless and compatible systems
• Compensates for cable loss and splitter insertion loss

Professional Applications

• Extended antenna cable runs in the AW+ frequency range
• Compensating splitter insertion loss in multi-receiver antenna systems
• Fixed installations including churches and worship facilities with remote antenna placement
• Touring productions operating in the 470-558 MHz band

Frequently Asked Questions

Can I use the AB 4-AW+ outside the 470-558 MHz range?

No. The AB 4-AW+ is tuned specifically for the AW+ band. Using it outside this range will not provide the intended gain and may attenuate signals in other frequency bands. Use the frequency-matched AB 4 variant for your system's operating range.

How does the AB 4 differ from the AB 3700?

The AB 3700 is a wideband booster (470-866 MHz) for 2000-6000 Series receivers with DC bias power. The AB 4 series are band-specific boosters designed for Evolution Wireless and similar systems, typically battery or externally powered.

Related Equipment and Workflow Compatibility

The AB 4-AW+ is designed for Sennheiser wireless systems operating in the AW+ frequency range. It works with any BNC-connected antenna and receiver combination and is commonly paired with A 1031-U or A 5000-CP antennas and ASA antenna splitters.

Why Professionals Use This Type of Product

• Band-specific filtering provides cleaner signal boost than wideband alternatives
• +10 dB gain compensates for cable and splitter losses
• Compact inline design installs between existing antenna and receiver
• Reduces out-of-band interference in congested RF environments

Additional Compatibility Information

The Sennheiser AB 4-AW+ is a band-specific inline antenna booster with +10 dB gain for the AW+ frequency range (470-558 MHz), designed for use with Sennheiser wireless systems and BNC antenna connections.