Sennheiser SL LAVALIER SET DW-4-US C SpeechLine Digital Wireless System


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  • This set includes the bodypack transmitter, stationary receiver and everything to use or install. It comes with the MKE 1 condensor lavalier microphone - so not just A lavalier mic, but the best and most unobstrusive one for great presentations with best speech clarity.

    All sets also come with rechargeable battery with up to 15hrs operating time. The battery is also usb-rechargeable, the cable is also in the box, the USB socket is presumable just a step away around you. The two type of sets are either Rackmount Sets (-R) come with rackmounts and everything to be mounted in a rack, or as a Case Version (-C Version), in a case - without rackmounts, if you don't want to install the receiver.


    • Automatic frequency and interference management
    • Excellent speech intelligibility
    • Full, natural sound with low ambient noise
    • Automatic frequency and interference management
    • Lockable 3.5 mm jack socket
    • Secure 256 bit AES encryption

    SpeechLine Digital Wireless is a presentation solution dedicated to speech. The digital wireless microphone system is a future-proof solution that's easy to set up, use and manage. A microphone which lets the presenter concentrate on their words, not on the technology.

    SpeechLine Digital Wireless comprises of mobile transmitters (handheld or bodypack) tailored for presentation, speech optimized microphone capsules (condenser capsules, lavalier or headworn microphone) and an easy-to-integrate stationary receiver. For convenience, the system relies on lithium-ion technology with a battery lifetime of more than 15 h and flexible charging solutions of multi-device chargers or USB-charging on the fly. Thanks to the Automatic Frequency Management, the system always finds a free frequency (no frequency planning is necessary anymore). The Automatic Interference Management always maintains a stable connection, which makes the system very reliable. The Automatic Sensitivity Management makes the setup even more convenient, no more gain settings are required. With seamless network integration the system can be controlled via AMX, Crestron or a dedicated remote control app available for iOS or Android, which makes SpeechLine DW easy to monitor and to manage.

    For secure communication, SpeechLine Digital Wireless uses the secure advanced 256-bit AES encryption for secure wireless transmission. Due to the 1.9 GHz frequency range SpeechLine DW is the future proof investment and already DD ready. Moreover, the 1.9 GHz is license free and requires no registration.

  • Frequency response 20 to 20,000 Hz
    THD, total harmonic distortion typ. 0.1 %
    Transducer principle Condensor
    Power consumption 350 mA
    Pick-up pattern omni-directional
    Nominal impedance 1 kΩ
    Signal-to-noise ratio > 90 dB(A)
    Equivalent noise level 27 dB
    Maximum sound pressure level (passiv) 143 dB
    RF output power adaptive, up to 250 mW (country-specific)
    Power supply 12 V DC
    Antenna connector 2 x reverse SMA
    Current consumption ca. 240 μA
    Audio output level (balanced) max. -18 dBu, typ. -24 dBu
    Audio output level (unbalanced) max. +6 dBu
    Dynamic range > 120 dB(A)
    Frequency range 1,920 to 1,930 MHz
    Operating voltage (stand alone) 4,5 - 15 V
    RF sensitivity < -90 dBm
    Sensitivity in free field 5 mV/Pa ± 2.5 dB (at 1 kHz)
    Connection Audio out: XLR 3M
    Audio out: 2 x RCA
    Network: RJ 45
    Sampling rates 24 bit/48 kHz
    What's In The Box

    MKE 1
    SL Bodypack DW
    SL Rack Receiver DW
    BA 30 rechargable battery

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