Sennheiser EW-D ASA (Q-R-S) Active Antenna Splitter

The EW-D ASA (Q-R-S) from Sennheiser is a 4-way active antenna splitter that delivers diverse wireless signal distribution for up to four EW-D EM wireless receivers. In addition, it supplies DC power to these receivers.

Sennheiser EW-D ASA Features

• 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

• EW-D ASA active antenna splitter (dual 1:4)1
• NT 12-35 CS power supply for EW-D ASA1
• BNC antenna interconnect cables8

• Frequency Range470 - 694 MHz
• Antenna Splitter2x 1:4 or 1x 1:8 active
• Gain
  • In A - out A: 0 +/-1dB
  • In A - out A1...A4: 0 +/-1dB
  • In B - out B1...B4: 0 +/-1dB
• IIP3> 25dBm
• Impedance50Ω
• Reflection Loss10dB (all RF outputs)
• Operating VoltageDC +12V from NT 12-35 CS power supply unit
• Current Consumption210mA
• Total Current Consumptionmax 3 A (with 4 EW-D EM and connected EW-D AB)
• Supply for Antenna Boosters at ANT RF in A and ANT RF in BDC 12 V 320mA
• Supply for Receivers at A1 to A4DC 12V, typically 350mA (max 500mA)
• Dimensions8.35x6.61x1.69"
• Weight2.42 lbs

More about Sennheiser's EW-D Series

Sennheiser’s Evolution Wireless Digital (EW-D) microphone systems are in a class of their own. Characterized by enhanced dynamic range increased bandwidth, an efficient setup process, a trustworthy UHF connection, scalable flexibility, and 24-bit digital audio for the best possible sound quality, EW-D offers wireless sound that’s ideal for beginners and pros alike.

Boasting an equidistant tuning grid and exceptional linearity, EW-D’s expertly engineered components eliminate intermodulation, resulting in frequencies that are equally spaced 600 kHz apart from each other. This streamlines frequency coordination and enables you to scale your sound system to a higher channel count as your audio needs grow or change. No matter how expansive your sound system is, signal syncing is reliable and simple, with EW-D’s Auto Scan function securing the best signal in a matter of seconds.

Another premium feature of EW-D is its companion, the Sennheiser Smart Assist app, which remotely connects to your wireless system and lets you coordinate frequencies effortlessly. Use this application to enable Bluetooth Low Energy, a functionality that gives you direct control and monitoring ability from the comfort of your Android or iOS device.