Sony Electronics announces the DWT-B40 bodypack transmitter and the DWR-R40Q rack-mount receiver, “the latest additions to the DWX Digital Wireless Microphone Series, designed to deliver intuitive, simple operability accessible to a wide range of users while ensuring advanced transmission reliability,” according to the announcement. The two new models, DWT-B40 and DWR-R40Q, are expected to be available in March 2027.
“Configuring frequencies on wireless microphones has traditionally required specialized expertise and complex procedures. With the 4th generation of DWX Series, however, channel setup and pairing can now be performed through straightforward operations, making the products suitable not only for professional production environments but also for a broader range of applications such as large- and small-scale studio operations and a variety of live events including theatrical productions, faith-based services, corporate events, lectures and seminars,” the announcement continues.
The new series is designed for enhanced transmission reliability through improved RF stability and audio transmission over long distances. The DWT-B40 newly incorporates an in-transmitter audio recording function powered by Sony’s unique technology, designed to enable distortion-free backup recording within the transmitter itself. Simultaneous transmission and recording is not currently supported in North America.
“With the fourth generation of our DWX Series, we are making advanced wireless technology more intuitive and accessible, without compromising the reliability that professional users expect,” says Andy Munitz, senior product manager, Professional Audio, Sony Electronics. “The DWT-B40 and DWR-R40Q combine simple operation with robust transmission performance, while the DWT-B40’s built-in backup recording provides an additional layer of reassurance for productions where capturing every moment matters.”
Key Features of the DWX 4th-Generation Series
Designed for a broader range of production applications, enhanced interference resistance and low-noise RF output waveforms are designed to ensure consistent and stable operation even in challenging RF environments.
The DWT-B40 supports a maximum transmission power of 50 mW, based on region, enabling stable long-distance audio transmission without the need for an external power source, and can be utilized at high transmission output in environments that demand long-range transmission.
The DWT-B40 offers flexible audio transmission options tailored to diverse production needs — from settings that deliver sound quality with low latency, to modes optimized for maximum transmission reliability in demanding broadcast and sports environments.
Meanwhile, the DWR-R40Q employs high-performance RF technology in its receiving circuitry, to improve transmission stability and deliver reliable performance even in RF-congested environments. In addition, its 4-antenna diversity mode can further enhance transmission stability.
This series enables frequency configuration and pairing for four channels with just a few button operations. This workflow is designed to make the products easier to operate and allow operations to begin almost instantly.
The DWT-B40 now supports power supply via lithium-ion batteries (sold separately) and USB, for greater flexibility and convenience in securing power on location. Condenser microphones can be connected directly to the transmitter, with a +48V phantom power supply also available.
The DWR-R40Q supports 4-channel true diversity reception in a 1U form factor, for efficient use of rack space. It also supports a Dante audio network with an expanded set of four output ports, providing flexible output options that accommodate diverse user workflows while delivering more stable IP connectivity and retaining analog XLR connections to support conventional operations.
32-bit Float Internal Recording on the DWT-B40 Powered by Sony’s Unique Technology
Using Sony’s unique algorithm, 32-bit float internal recording provides a backup even in the event of wireless signal interruption (simultaneous transmission and recording is not currently supported in North America). The 32-bit float format is designed to prevent distortion at most any gain level. Recording can be operated directly via the REC button, as well as remotely from the receiver through Cross Remote control. Timecode synchronization streamlines post-production workflows, and data transfer via microSD card.
For more information, please visit pro.sony/DWX.
