Sennheiser AB 4-AW+ Inline Antenna Booster, 470-558 MHz

Sennheiser AB 4 Frequency-Selective Antenna Booster

Product Description

The Sennheiser AB 4 is a frequency-selective antenna booster designed to enhance the RF performance of Evolution Wireless systems. By amplifying signals within the specified frequency range by +10 dB while attenuating out-of-range frequencies, it ensures clearer, more reliable wireless reception. The unit is powered via a connected ASA214UHF antenna splitter and includes a pass-through function that allows up to two boosters to be connected per antenna cable line for extended setups. An LED indicator confirms that the unit is receiving DC power.

For optimal performance, cable lengths should be managed as follows:

• Under 24 ft (8 m) — no booster needed

• 24–108 ft (8–36 m) — use one booster per antenna cable line

• 108–216 ft (36–64 m) — use two boosters per antenna cable line

Key Features

• Enhances RF signal strength of Sennheiser Evolution Wireless systems by +10 dB

• Frequency-selective amplification ensures only desired signals are boosted

• Powered by ASA214UHF antenna splitter

• Pass-through function allows up to two boosters per antenna line

• LED power indicator for easy monitoring

• Ideal for live sound, broadcast, and professional wireless setups