SENNHEISER EW-D ASA (Q-R-S)

Managing multiple wireless receivers in a professional audio setup often means dealing with signal loss and antenna clutter. The Sennheiser EW-D ASA Active Antenna Splitter solves this by distributing RF signals from a single pair of antennas to up to eight EW-D receivers, ensuring clean, reliable performance without the need for separate antenna pairs for each receiver.

Who is it for

This splitter is ideal for live sound engineers, houses of worship, conference centers, and broadcast studios that run multiple Sennheiser Evolution Wireless Digital (EW-D) systems. It simplifies rack installations and maintains signal integrity across all connected receivers.

Main features

• Active RF distribution for up to 8 EW-D receivers using just two antennas
• Wide frequency range: 470–668 MHz (Q-R-S band)
• Integrated DC power distribution for connected receivers (12 V DC)
• Zero nominal gain with active compensation to offset splitter loss
• Rugged metal housing suitable for rack or standalone use
• LED indicators for power and RF signal status

Specifications

• Product type: Active antenna splitter / RF distribution amplifier
• Frequency range: 470–668 MHz
• Antenna inputs: 2 x BNC (50 Ohm)
• Receiver outputs: 8 x BNC (50 Ohm, 2 x 1:4 distribution)
• RF gain: 0 dB nominal (active compensation)
• Input voltage: 12 V DC
• Current consumption: 350 mA max
• Power supply: External NT 12-35 CS (included)
• Impedance: 50 Ohm
• Compatibility: Sennheiser Evolution Wireless Digital (EW-D) series
• Max receivers supported: 8
• Housing material: Metal
• Operating temperature: -10 °C to +55 °C
• Storage temperature: -20 °C to +70 °C
• Connectors: BNC (RF), DC input jack
• Mounting options: Standalone or rack-mountable with optional GA 3 kit

Tips

For best results, mount the splitter close to your receivers and use high-quality 50-ohm BNC cables. The included power supply can power the splitter and connected EW-D receivers, reducing cable clutter. If rack mounting, consider the optional GA 3 rackmount kit for a clean installation.