SL Boundary Set DW-3 EU

What the DW-3 EU set includes

The Sennheiser SL Boundary Set DW-3 EU is a complete wireless table microphone package for speech capture in conference rooms. Its centrepiece is the SL Boundary 114-S DW, a table boundary microphone that needs no cable to the table, paired with the SL Rack Receiver DW, which ships with its own power supply. The box also holds a USB cable, a BA 40 rechargeable battery, a GA 4 rack mount kit and a quick guide. The manufacturer lists everything needed for use and installation, so one order can equip a single room.

Pickup, audio and battery facts that matter

The microphone uses a condenser transducer with cardioid and half-cardioid pickup patterns. Cardioid favours the person directly in front of the microphone, which helps keep the focus on people seated at the table rather than on the room behind them. The manufacturer rates the signal-to-noise ratio above 90 dB(A), the dynamic range below 100 dB(A) and typical total harmonic distortion at 0.1 %. Audio is sampled at 24 bit/48 kHz, and the frequency response runs from 40 to 20,000 Hz. The listed operating frequency range is 1880.000 - 1900.000.

Power comes from a 2.2 Ah, 3.6 V battery pack. The product description cites up to 12 hours of operating time, while the specification sheet lists a typical 13 hours for the pack, so real runtime will vary with use. The microphone can be charged wirelessly or through USB, and dedicated battery status LEDs show remaining charge. A separate wireless power transmitter, the CHG 2W, is available as an optional accessory.

Where it fits in Qatar

A boardroom in West Bay or Msheireb with one long conference table is a natural fit. The boundary microphone sits in front of the seats, and the wireless design keeps floor cables away from chairs and walkways. In Education City, a seminar room where a lecturer and a small panel sit at a fixed table can use the set for discussions and questions. A ministry meeting room in Doha that runs sessions in Arabic and English, Sunday to Thursday, can use the same set for bilingual meetings, with the SL Rack Receiver DW kept in an equipment cabinet away from the table.

Hybrid meetings that connect Doha with teams abroad depend on clear pickup at the table, so pattern choice and placement matter as much as the hardware. Hot spaces need separate checking: the data does not give an operating temperature range for this model, so confirm room conditions before using it anywhere other than an air-conditioned room.

Planning the installation

• Choose a cabinet location for the SL Rack Receiver DW and fix it with the included GA 4 rack mount kit.
• Confirm that the DW-3 EU variant and its 1880.000 - 1900.000 frequency range suit your site before ordering several sets.
• Set a charging point for the battery pack so it is ready before each session.
• Allow for the listed microphone weight of 208 g and its footprint of 405 by 350 when laying out seats.

The set carries the manufacturer's 2-year warranty. SmartRooms Qatar offers a free site survey, which is worth booking for a long table or a tight equipment cabinet so the layout is checked before delivery. Purchase orders (LPOs) are accepted and quotations are usually issued within one working day. To request a quote for the SL Boundary Set DW-3 EU, send the room size, seating layout and quantity to the SmartRooms Qatar team.