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Sennheiser EW-D AB Wireless Antenna Booster for Microphone Systems
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Sennheiser EW-D AB Wireless Antenna Booster for Microphone Systems

•Digital transmission operating in the UHF spectrum greatly enhances range, reliability and scalability
•Smart Assist App connects via Bluetooth Low Energy for a streamlined setup and operation at a distance
•Auto scan creates reliable connections with minimal time and effort
•134 dB audio input dynamic range eliminates need for sensitivity adjustments and preserves every detail
•Elimination of intermodulation enables channels to be placed in an equidistant tuning grid 600 kHz apart
•56 MHz of tuning bandwidth and equidistant spacing enables up to 90 channels
•2,240 selectable frequencies allow for fine tuning
•Lithium-Ion battery pack (sold separately) delivers up to 12 hours of operation (up to 8 hours of operation with 2x provided AA batteries)

Overview of  Sennheiser EW-D AB :

The Sennheiser EW-D AB is a frequency-selective inline antenna booster designed for use with Evolution Wireless Digital systems. It amplifies antenna signals by +12 dB, compensating for signal loss from long coaxial cable runs. Ideal for professional wireless setups, it maintains signal strength and ensures reliable RF performance across large stages, auditoriums, and broadcast setups.

  • Inline booster designed specifically for Evolution Wireless Digital systems

  • Compensates for long antenna cable signal loss with +12 dB gain

  • Available in 7 frequency-specific variants for optimal performance

  • Pass-through DC power and RF signal in both directions

  • Easy integration via BNC connectors and green LED power status

Specifications

Frequency Variants :

 

Model Variant Frequency Range
EW-D AB (Q) 470 – 550 MHz
EW-D AB (R) 520 – 608 MHz
EW-D AB (S) 606 – 694 MHz
EW-D AB (T) 694 – 824 MHz
EW-D AB (U) 823 – 865 MHz
EW-D AB (V) 902 – 960 MHz
EW-D AB (Y) 1785 – 1805 MHz

Electrical & RF Specifications :

 

Feature Details
Gain +12 dB
Impedance 50 Ω
IIP₃ (3rd Order Intercept) > +25 dBm
Maximum RF Input Power +10 dBm
Power Consumption ≤ 160 mA
Power Supply Voltage 9 – 18 V DC (center positive)
DC Pass-Through Yes (via BNC cabling)

Connectivity & Indicators :

 

Feature Details
RF Input BNC female
RF Output BNC female
DC Pass From antenna splitter to antenna
Status Indicator Green LED (power present)

Physical & Environmental Specs :

 

Feature Details
Dimensions 95 × 47 × 21 mm
Weight Approx. 120 g
Operating Temperature –10 °C to +55 °C
Storage Temperature –20 °C to +70 °C
Humidity Tolerance 5% – 95% (non-condensing)

What's in The Box?

  • 1 × Sennheiser EW-D AB antenna booster

  • 1 × BNC cable

  • 1 × User documentation/manual

Additional Resources

Quick-Guide :

https://www.sennheiser.com/globalassets/digizuite/50338-en-2025-sennheiser-ew-d--ew-dx-design-guide.pdf

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