Overview
The Sennheiser EW-D EM is the single channel rack receiver at the heart of every Evolution Wireless Digital system. It pairs with the EW-D SKM-S handheld and EW-D SK bodypack, scans for clear channels on its own and syncs to the transmitter at the press of a button, so a church volunteer or school AV team can get a clean, reliable digital link without an RF specialist on hand.
Setup and monitoring run through the free EW-D Smart Assist app over Bluetooth Low Energy, and the receiver sits in a half rack width metal housing with balanced XLR and 6.3 mm jack outputs. In a multichannel rack, run up to four receivers from an EW-D ASA antenna splitter, which also distributes DC power. Choose the frequency band to match your transmitters. FFP supplies Australian legal bands and can advise which suits your venue.
Highlights
- Digital UHF transmission with 1.9 ms latency and 134 dB dynamic range, so there are no sensitivity settings to fiddle with
- Auto scan and one button sync to EW-D transmitters
- Setup and control from the EW-D Smart Assist app over Bluetooth Low Energy
- Up to 90 channels in 56 MHz of tuning bandwidth on a 600 kHz equidistant grid
- Balanced XLR-3 and unbalanced 6.3 mm jack audio outputs
- Half rack width metal housing, GA 3 rack kit and NT 12-5 CW power supply included
Specifications
| Frequency ranges | R1-6: 520 to 576 MHz (508801); R4-9: 552 to 607.8 MHz (508802); S1-7: 606.2 to 662 MHz (508803); S7-10: 662 to 693.8 MHz (508805) |
| Selectable frequencies | Up to 2,240 |
| Channels | Up to 90 (56 MHz bandwidth, 600 kHz spacing) |
| Audio frequency response | 20 Hz to 20 kHz (-3 dB) |
| Dynamic range | 134 dB |
| System latency | 1.9 ms |
| THD | ≤ -60 dB at 1 kHz, -3 dBFS input |
| Audio output level | +18 dBu max. |
| Antenna inputs | BNC, 50 ohm |
| Power | 11 to 13 V DC, ≤ 300 mA |
| Dimensions | 212 x 44 x 189 mm |
| Weight | Approx. 1000 g (without antennas and PSU) |
| In the box | EW-D EM, 2 rod antennas, NT 12-5 CW PSU, GA 3 rack kit, 4 rubber feet |
Forefront Tip
Once you are past two channels, rack the receivers with an EW-D ASA CN/ANZ (Q-R-S) splitter and a pair of ADP UHF antennas mounted up and away from the stage. You free up three power points, and every receiver gets a cleaner signal than it would from its own rod antennas behind a rack door.
