SL MCR 4 DW-7

What the SL MCR 4 DW-7 does in a room

The Sennheiser SL MCR 4 DW-7 is a four-channel receiver for the SpeechLine Digital Wireless system. It takes the signals from four wireless transmitters and makes them available as audio for a conferencing system, a DSP, a recording setup or a loudspeaker feed. Its frequency range is listed as 1910.000 - 1920.000, the same band as the two-channel SL MCR 2 DW-7, so the choice between those two models comes down to how many channels a room needs.

Network audio, analog outputs and remote control

The receiver is powered over Ethernet and provides two Dante network sockets with primary and secondary Dante connections, so a single network cable can carry both power and audio. Teams that still rely on analog equipment can use the 3-pin output, which delivers a summed mix of all four channels. An integrated automixer and automatic gain control help keep levels steady when several speakers take turns. Bidirectional communication with the transmitters allows settings to be adjusted from the Sennheiser Control Cockpit, and the receiver can be monitored and controlled from media control systems such as AMX, Crestron and Q-SYS Control.

• Latency: 23 ms
• Total harmonic distortion: typ. 0.1 %
• Dynamic range: more than 120 dB(A)
• Encryption: AES 256
• Power consumption: less than 15 W

Where it fits in Qatar

In a lecture theatre at Education City hosting a panel of four speakers, the receiver can be mounted on a wall or ceiling close to the AV rack, away from the stage and the audience. In a ministry boardroom in Msheireb where four presenters join meetings that link Doha with colleagues abroad, the mix output can feed the existing conferencing system. A private school in Al Sadd fitting out a new auditorium could use the receiver to connect four handheld or lapel transmitters to a digital mixing desk.

Planning the installation

Each unit measures 180 x 180 x 45 mm including the wall mounting plate and weighs 560 g, so it is compact enough for a rack-adjacent wall or a ceiling void. The box includes a drilling template, a 3-pin Phoenix connector and a quick guide. The operating temperature range is -10°C to +45°C with humidity up to 95 %. Summer temperatures in Qatar can exceed 45°C, so install the receiver in an air-conditioned comms room or ceiling space rather than an unconditioned plant area. Confirm your network switch has enough Power over Ethernet capacity for every receiver before ordering. Battery packs are not included. Free site surveys are available before installation, which helps confirm cable routes and antenna clearance in a finished room.

Request a quote

To request a quote for the Sennheiser SL MCR 4 DW-7, send the number of receivers and transmitters, the room layout and your network details. SmartRooms Qatar usually returns a quotation within one working day. Government ministries, schools and universities can order by purchase order or LPO, and tender requirements can be handled through Monaqasat.