- Extremely compact – ideal for theater and sports broadcasting
- IP57 rated for moisture resistance
- High density mode for maximum channel counts in limited spectrum
- Selectable RF power; 50, 25, 10 mW (D2 mode)
- Offers over 6000 frequencies across a wide UHF range
- Two-way IR port for easy set-up
- Firmware updates via USB/Wireless Designer
- Wide range input gain control in 1 dB steps
- Dock chargable with optional CHSDSSM unit
The DSSM is the enhanced, fully digital successor to the SSM, while being IP57 rated for watertightness and offering dock charging capability.
The IP57 rating indicates that the unit is protected against dust ingress while also withstanding water immersion up to 1 meter for 30+ minutes – perfect for the most demanding work environments. All while allowing for quick battery swap-outs.
The DSSM is ideal for theater, TV, film and broadcast environments where concealment and water-resistance is required. The DSSM offers an extensive feature set and performance packed into an exceptionally compact housing, compatible with all current Lectrosonics digital receivers, including the DSQD, DCR822, DSR, DSR4, M2Ra, and DCHR.
The DSSM includes specially developed, high efficiency circuitry for extended operating time on the rechargeable LB-50 battery. RF power selections are offered at 10 and 35 mW (D2 compat mode) and a special high density (HDM) mode at 4 mW.
Optional Battery Charger
CHSDSSM – DSSM Transmitter and Battery Charging Station

Included Accessories
- 1 – AMM19 – Whip Antenna with Standard SMA Connector. Block 19; included with A1B1 variant only.
- 1 – AMM22 – Whip antenna with Standard SMA Connector. Block 22; included with A1B1 and B1C1 variants.
- 1 – AMM25 – Whip antenna with Standard SMA Connector. Block 25; included with B1C1 variants only.
- 1 – AMM944 – Whip antenna with Standard SMA Connector. Block 944; included with 941 variants only.
- 1 – 35939 Pouch
- 1 – 40106-1 Lithium Battery
- 1 – 27332-1 – Wire Belt Clip
Accessories
Below is a link to the current firmware update file for the D² Digital System – DSQD receiver and the DSSM, DBu, DBu-LEMO and DHu transmitters. This is a zip file, after downloading extract it into a temporary folder. Use the Wireless Designerâ„¢ program to update firmware. Instructions are found here.
Note: This is a link to the Wireless Designer firmware update file, which bundles the latest firmware for multiple products. Wireless Designer will automatically choose the right firmware images from the file.
| Title | File Size | File Type | Date | Filename | Link |
|---|---|---|---|---|---|
| Firmware for Units Updated with Wireless Designer | 34 MB | zip | June 25, 2026 | wd_v10Jun2026.zip |
WD Firmware Update v11May2026
DSSM v3.09 (SUPER)/v2.01 (FPGA)
DSSM/E01 v3.09 (SUPER)/v2.01 (FPGA)
- Added two microphone input configurations to the “InpCfg” menu for use with the new “L1” lavalier microphone. These are “L1 Lsns” (“low sensitivity”) and “L1 Hsns” (“high sensitivity”).
WD Firmware Update v10Nov2025
DSSM v3.06 (SUPER)/v2.01 (FPGA)
DSSM/E01 v3.06 (SUPER)/v2.01 (FPGA)
- Now, the BATT LED indicates the status of IR sync transfers:
- 3 double flashes, green: sync success
- 3 double flashes, red: sync failure
WD Firmware Update v13Feb2025
DSSM v3.05 (SUPER)/v2.01 (FPGA)
DSSM/E01 v3.04 (SUPER)/v2.01 (FPGA)
- Changes to for ease of manufacturing. No new features.
WD Firmware Update v19Dec2024
DSSM v3.03 (SUPER)/v2.01 (FPGA)
DSSM/E01 v3.03 (SUPER)/v2.01 (FPGA)
- Initial production release.





























