Sennheiser SL Boundary Set DW-3 AU

Name: Sennheiser SL Boundary Set DW-3 AU Wireless Table Microphone System
Brand: Sennheiser
SKU: sennheiser-sl-boundary-set-dw-3-au-506620
Availability: InStock

Overview

The Sennheiser SL Boundary Set DW-3 AU (article 506620) is a wireless table microphone kit for conference rooms, combining an SL Boundary 114-S DW boundary mic with an SL Rack Receiver DW. It offers cardioid and half-cardioid pickup, inductive or USB charging, a typical 13-hour battery pack and remote monitoring through Sennheiser Control Cockpit. It suits boardrooms and ministry meeting rooms in Doha that want cable-free tables. Request a quote.

What the SL Boundary Set DW-3 AU contains

The set is a complete wireless table microphone kit. It combines the SL Boundary 114-S DW table boundary microphone with the SL Rack Receiver DW, which ships with its own power supply. The box also holds a BA 40 rechargeable battery, a USB cable, a GA 4 rack mount kit and a quick guide, so the receiver can be racked and the microphone put to work without buying extra parts. Article number 506620 identifies this DW-3 AU variant.

Audio and battery facts worth checking

The microphone uses a condenser transducer with cardioid and half-cardioid pickup patterns, a microphone sensitivity of 10 mV/Pa and an audio frequency response of 40 to 20,000 Hz. The technical data lists a signal-to-noise ratio above 90 dB(A), a dynamic range below 100 dB(A), 24 bit/48 kHz sampling and total harmonic distortion typically at 0.1 %. The battery pack is rated at 2.2 Ah and 3.6 V, with a typical operating time of 13 hours.

Cardioid and half-cardioid pickup suited to speakers seated around a table
Inductive charging or USB charging, with the CHG 2W transmitter sold separately
Battery status LEDs on the microphone show charge level at a glance
Remote monitoring and control through the Sennheiser Control Cockpit

Where the set fits in Qatar

In a boardroom in West Bay, a table-mounted boundary microphone keeps cables off a polished conference table and lets executives speak naturally during video calls with teams abroad. In a government meeting room in Msheireb, the rack receiver can sit in an existing AV cabinet beside the conferencing codec, keeping the room tidy while meetings run in Arabic and English. In a seminar room in Education City, the wireless set lets lecturers and guest speakers move around the table without tripping over leads.

What to plan before installation

Choose a rack position near mains power with room for the GA 4 rack mount kit
The data gives no operating temperature range, so confirm the receiver location with the SmartRooms Qatar team before fixing it
Plan battery charging between sessions, as the set includes one BA 40 battery
Confirm the frequency range of 1880.000 - 1900.000 against your site requirements before ordering

The set carries a 2-year manufacturer warranty. Ask SmartRooms Qatar for a free site survey to plan table positions and the rack location. Request a quote for the SL Boundary Set DW-3 AU and our team will reply with pricing and next steps, usually within one working day. Purchase orders (LPOs) and government tenders are welcome.

Highlights

Complete kit: SL Boundary 114-S DW microphone and SL Rack Receiver DW
Cardioid and half-cardioid pickup patterns
Inductive or USB charging with battery status LEDs
Typical 13-hour battery pack operating time
Remote monitoring through Sennheiser Control Cockpit
Frequency range 1880.000 - 1900.000; 2-year warranty

Room fit

Tell us the room size and platform (Teams, Zoom or BYOD) and we confirm the right combination with your quotation.

Estimated timeline

Quotation within 1 working day · delivery timing depends on stock availability, and we confirm it with your quotation.

Specifications

41 specifications · Source: manufacturer · checked Oct 2026

Logistics1

Warranty (years): 2

Product2

Transducer type: Condenser
Total harmonic distortion (THD): typ. 0.1 %

Frequency Specifications2

Frequency range: 1880.000 - 1900.000
Audio frequency response: 40 to 20,000 Hz

Acoustic Properties4

Dynamic range (>): < 100 dB(A)
Sampling rates: 24 bit/48 kHz
Signal-to-noise ratio: > 90 dB(A)
Pickup pattern: Cardioid, Half cardioid

Connectivity1

Connection: Wireless

Battery & Power5

Battery capacity (Ah): 2.2
Battery count: 1
Battery included: Y
Battery voltage (V): 3.6
Battery operating time (h): Battery pack: typ. 13 h

Electrical Properties1

Microphone sensitivity: 10 mV / PA

Dimensions4

Product weight (g): 208
Product height: 73
Product length: 405
Product width: 350

SL Boundary Set DW-3 AU21

article_number: 506620
specs · Logistics · Warranty (years): 2
specs · Product · Transducer type: Condenser
specs · Product · Total harmonic distortion (THD): typ. 0.1 %
specs · Frequency Specifications · Frequency range: 1880.000 - 1900.000
specs · Frequency Specifications · Audio frequency response: 40 to 20,000 Hz
specs · Acoustic Properties · Dynamic range (>): < 100 dB(A)
specs · Acoustic Properties · Sampling rates: 24 bit/48 kHz
specs · Acoustic Properties · Signal-to-noise ratio: > 90 dB(A)
specs · Acoustic Properties · Pickup pattern: Cardioid, Half cardioid
specs · Battery & Power · Battery capacity (Ah): 2.2
specs · Battery & Power · Battery count: 1
specs · Battery & Power · Battery included: Y
specs · Battery & Power · Battery voltage (V): 3.6
specs · Battery & Power · Battery operating time (h): Battery pack: typ. 13 h
specs · Electrical Properties · Microphone sensitivity: 10 mV / PA
specs · Dimensions · Product weight (g): 208
specs · Dimensions · Product height: 73
specs · Dimensions · Product length: 405
specs · Dimensions · Product width: 350
in_the_box: (1) SL Boundary 114-S DW Table boundary microphone · (1) SL Rack Receiver DW incl. power supply · (1) USB cable · (1) BA 40 Rechargeable battery · (1) GA 4 Rack mount kit · (1) Quick guide

Downloads

0 files from the manufacturer

No downloadable files are listed for this model yet. Ask us and we will send the datasheet.

Questions about SL Boundary Set DW-3 AU

What is the Sennheiser SL Boundary Set DW-3 AU used for?

It is a wireless table microphone kit for conference rooms. It pairs an SL Boundary 114-S DW boundary microphone with an SL Rack Receiver DW, so speech picked up at the table reaches the room system without cables across the furniture. It suits boardrooms and meeting rooms in Doha, West Bay and Lusail where the conference table needs to stay clear and video calls with overseas teams are frequent.

How does the DW-3 AU variant differ from the other SL Boundary Set DW models?

This is article 506620, with a frequency range of 1880.000 - 1900.000. The DW-3 EU and DW-3 UK variants list the same range, while DW-6 US lists 1880.000 - 1895.000, DW-5 US lists 1893.000 - 1906.000, DW-4 US and DW-4 EU list 1920.000 - 1930.000, and DW-7 BR lists 1910.000 - 1920.000 with a brown finish. Compare the frequency range and variant code before ordering.

Which pickup patterns does the microphone offer?

The SL Boundary 114-S DW supports cardioid and half-cardioid pickup patterns. Cardioid pickup favours sound from the front of the microphone, which helps it focus on the person speaking at the table and reduces pickup from the rest of the room. Half-cardioid pickup is a narrower option for seating layouts where the microphone sits close to one side of the table.

How is the microphone charged?

The set uses inductive charging, and the SL Boundary 114-S DW can also be charged via USB, with the USB cable included in the box. The wireless power transmitter CHG 2W for two mobile devices is sold separately. Battery status LEDs on the microphone show the remaining charge, so facilities staff can check it before a meeting without opening the unit.

How long does the battery last?

The included BA 40 battery pack is rated at 2.2 Ah and 3.6 V, and the technical data lists a typical operating time of 13 hours. The product description mentions up to 12 hours, so confirm the expected run time with the SmartRooms Qatar team when you request a quote. Plan charging between long sessions, such as full-day university workshops, because the set includes one battery.

Can the system be monitored remotely?

Yes. The microphone can be monitored and controlled remotely with the Sennheiser Control Cockpit. This lets an IT or AV team check the status of the wireless set across rooms from one place, which is useful for ministries or schools with several conference rooms that need to stay ready for scheduled meetings.

What is included in the box?

The box contains one SL Boundary 114-S DW table boundary microphone, one SL Rack Receiver DW with its power supply, one USB cable, one BA 40 rechargeable battery, one GA 4 rack mount kit and a quick guide. The rack kit lets the receiver sit in an AV cabinet, so no extra mounting hardware is needed for a standard rack installation.

Does the receiver need to be near the microphone?

The microphone connects wirelessly to the SL Rack Receiver DW, so the receiver does not need a cable run to the table. It does need a mains connection for its power supply and a suitable position in the rack. A site survey helps confirm line of sight from the table to the rack in a boardroom with glass partitions or a large conference table.

Is this set suitable for a boardroom in West Bay?

It suits a boardroom where executives sit around a central table and join video calls with teams abroad. The microphone's cardioid and half-cardioid pickup helps capture speech from the seats around the table. Before installation, confirm the room layout and the frequency range of 1880.000 - 1900.000 against local requirements, and check the rack location with the SmartRooms Qatar team.

Can the set be used in a university seminar room in Education City?

Yes, for seminar rooms where lecturers and guest speakers move around a table. The wireless link removes trailing leads, and the battery status LEDs help staff keep the microphone charged between sessions. Because the set includes one battery, plan a charging routine between teaching blocks, and confirm the run time expected for your schedule when requesting a quote.

Can a school or government office order several sets under one purchase order?

Yes. SmartRooms Qatar accepts purchase orders (LPOs) and government tenders, including Monaqasat, and delivers to all eight municipalities of Qatar. Quotations are usually issued within one working day. When ordering several rooms, list each variant code, such as 506620 for DW-3 AU, so that the frequency range matches the rooms you plan to equip.

What warranty applies to the SL Boundary Set DW-3 AU?

The product carries a 2-year warranty from the manufacturer, as listed in the technical data. SmartRooms Qatar offers professional installation and a free site survey, which helps avoid placement problems that could otherwise lead to support calls. Request a quote to confirm the warranty terms that apply to your order.