SL Boundary Set DW-4 EU

What the SL Boundary Set DW-4 EU includes

The SL Boundary Set DW-4 EU, article 506633, is a complete wireless table microphone kit built around the SL Boundary 114-S DW, a condenser boundary microphone designed for speech in conference rooms. It is paired with an SL Rack Receiver DW that ships with its power supply. The box also holds one BA 40 rechargeable battery, a USB cable, a GA 4 rack mount kit and a quick guide, so the set is ready for installation without sourcing extra parts.

Audio performance for this variant

Because the microphone connects wirelessly, the cable run that normally crosses a conference table disappears, and participants can rearrange seating without re-routing wiring. This variant lists a frequency range of 1920.000 - 1930.000. The cardioid and half-cardioid pickup patterns focus pickup on the voices in front of the microphone. The signal-to-noise ratio is above 90 dB(A), the dynamic range is below 100 dB(A), and audio is sampled at 24 bit/48 kHz with a frequency response of 40 to 20,000 Hz. Typical total harmonic distortion is 0.1 %.

These figures matter most in rooms where people speak at normal volume from a fixed table and the audio must stay clear at the far end of a call. Clear pickup depends on placement as much as on the hardware, so the microphone should sit in front of the speakers it serves, away from fans and projectors.

Battery, charging and remote monitoring

• The battery pack is rated at typ. 13 h operating time, with 2.2 Ah capacity and 3.6 V.
• The microphone charges wirelessly or through USB, and the CHG 2W wireless charger is available as a separate accessory.
• Dedicated battery status LEDs show the remaining charge at a glance.
• All devices can be monitored and controlled remotely with the Sennheiser Control Cockpit.

For a facilities team managing several rooms, remote monitoring lets staff check the status of each set from one place rather than visiting every meeting room before a session.

Where the kit fits in Qatar

In a boardroom in West Bay or Msheireb, the boundary microphone sits on a long table where executives speak from fixed seats, while the receiver is racked in a nearby comms cabinet. In a university seminar room in Education City, a lecturer can move around the front of the room while the table microphone keeps discussion audible for students. In a government office where staff work in Arabic and English side by side, the same microphone serves both Arabic and English sessions in the room, and the rack receiver keeps equipment tidy in a shared technical room.

Planning the installation

Before ordering, confirm the listed frequency range against the site plan and check for other wireless equipment in the same room. SmartRooms Qatar offers a free site survey, which helps choose the receiver rack location and the microphone position. The microphone weighs 208 g, and the data for this variant lists no dimensions, so ask for the product drawing when comparing it with a table layout. For a school or ministry fitting out several rooms, a single LPO can cover all units, and quotations for government tenders can be arranged through Monaqasat.

Products are covered by the manufacturer's warranty, which is listed as 2 years. Request a quote from SmartRooms Qatar and the team will confirm the configuration and installation scope for your rooms.