SL MCR 4 DW-3

What the SL MCR 4 DW-3 does in a room

The Sennheiser SL MCR 4 DW-3 is the four-channel member of the SpeechLine DW Multi-Channel Receiver family. It collects signals from wireless microphone transmitters and turns them into audio that a conferencing codec, DSP, mixer or recording system can use. Because one unit handles four channels, a single receiver can serve a panel discussion, a lecturer with a companion microphone, or a meeting where several people speak without passing one handheld around.

Audio leaves the unit in three ways. Two Dante network sockets carry digital audio over the Ethernet infrastructure already linking your AV devices, with primary and secondary Dante connections. A three-pin socket provides an analog mix output, and an integrated automixer combines all active channels into a single sum signal. The unit is powered over Ethernet, so one network cable can carry both power and audio, removing most of the analog cabling that older installations required.

Frequency band, encryption and setup

The receiver operates in the 1880.000 - 1900.000 frequency range, which is the band that sets this model apart from its siblings. Before buying, compare this range with the transmitters you already own or plan to buy, because a receiver and its transmitters must share a compatible band. Automatic frequency management removes manual frequency setting, and automatic interference management keeps transmissions stable. Audio is encrypted with AES 256.

Pairing uses a user-friendly function, and bidirectional communication lets you adjust connected transmitter settings from the Sennheiser Control Cockpit software. For larger control systems, the receiver can be monitored and controlled remotely through a media control system; the manufacturer names AMX, Crestron and Q-SYS Control as examples. Automatic gain control, 23 ms latency, typical total harmonic distortion of 0.1 % and a dynamic range above 120 dB(A) define the audio performance you can plan around.

Where it fits in Qatar

In a lecture theatre at a university in Education City, presenter and guest microphones need a stable audio path. The receiver can feed its mix into an existing Dante network without replacing the DSP. In a multipurpose hall at an Arabic-curriculum school in Al Wakrah, the unit can be wall or ceiling mounted to keep equipment racks free. In a government boardroom in Msheireb, where a hybrid meeting links Doha with teams abroad, the mixed output can feed the room's conferencing equipment so remote participants hear every speaker clearly.

The receiver is rated from -10°C to +45°C with relative humidity up to 95 %. Summer temperatures in Qatar often exceed 45°C, so avoid hot ceiling voids, sun-facing walls and unventilated cabinets. Confirm the installation environment with the SmartRooms Qatar team before fixing a unit, especially in dusty industrial spaces.

What to plan before installation

• Mounting: wall, ceiling or microphone stand, with the wall mounting plate and drilling template in the box
• Size and weight: 180 x 180 x 45 mm including the wall mount, 560 g
• Power: under 15 W consumption, with no battery included
• Network: two RJ-45 Dante sockets and PoE support at the network switch port
• Analog output: a 3-pin Phoenix connector is included for the analog mix

No separate antenna installation is needed because the antennas are integrated, which simplifies location choice. A free site survey lets our team check the chosen position against your room layout and network. The unit carries the manufacturer's two-year warranty, and orders for several receivers can be placed on a purchase order or government tender.

Request a quote

To receive a quotation for the SL MCR 4 DW-3, send us the number of channels, the transmitters you will pair, your room layout, and whether you need Dante, analog output or both. Our team usually replies within one working day. Request a quote today.