Ideal for theater, TV, film, sports, and broadcast applications where concealment is desired and water-resistance is required, the 470 to 607 MHz Lectrosonics DSSM Micro Digital Wireless Transmitter is the company's smallest transmitter with an IP57 rating and dock-charging capability. The DSSM offers an extensive feature set packed into an exceptionally rugged and lightweight, solid-aluminum housing, and is compatible with all Lectrosonics digital receivers, including the DSR, DSR4, DSQD, DCR822, M2Ra, and DCHR. The servo bias input circuitry can accommodate an electret lavalier mic, a dynamic mic, or a line-level input via the locking, 3-pin LEMO connector.

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 35mW (D2 mode) and at 2mW (Special High Density/HDM mode). The membrane switch panel and OLED display enable quick access to all adjustments and settings.

For DSQD, DCHR, and M2Ra Receivers    For DSR, DSR4, and DCR822 Receivers    CHSDSSM Drop-In Charging Bay    IP57 Water Resistant    Exceptionally Small Design    LEMO 3-Pin Mic Input Connector    All-Metal Construction    RF Power: 10 & 35mW (D2), 2mW (HDM)    AES 256-Bit CTR Encryption    Removable, LB-50 Rechargeable Battery

• The IP57 rating indicates that the unit is protected against dust ingress while also withstanding water immersion up to 3.2' for 30+ minutes—all while allowing for quick battery swap-outs 
• The housing is constructed of machined aluminum alloy treated in the conductive, super hard electroless nickel ebENi finish 
• The audio-input jack is a 3-pin LEMO connector with a threaded collar adding additional ruggedness 

• The optional CHSDSSM battery charging station provides a convenient and organized way of recharging any mix of four DSSM transmitters and/or four LB-50 lithium-ion batteries 
• Full charging of battery takes 3 hours 
• The DSSM transmitter can operate up to 6 hours on a full charge 
• For larger systems with numerous batteries in regular use, the CHSDSSM charger may be daisy-chained to 3 additional CHSDSSM chargers using a single DCR5/9AU AC/DC power supply (available separately) for a total of 16 LB50s and/or DSSMs charging at once 

• The input section features the unique Lectrosonics servo bias input circuitry accepts mic- or line-level signals with a wide range of gain adjustment in 1 dB steps 
• Accurate indications on the display allow precise gain adjustments to be made for the maximum signal to noise ratio and minimum distortion
• A DSP-controlled analog audio limiter is employed ahead of the first mic preamp to protect the entire audio chain from overload. The limiter has a range of more than 30 dB for excellent overload protection, and a dual-release envelope that makes the limiter acoustically transparent while maintaining low distortion of brief transients and longer duration peaks 
• Selectable, low-frequency roll-off at 35, 50, 70, 100, 120, and 150 Hz

• The membrane switch panel and OLED display enable access to all adjustments and settings. The menu structure is easy to navigate 
• Battery status is indicated by a bi-color LED that is green with a fresh battery, then turns to red as the battery runs down, and finally starts blinking red when there are only a few minutes of runtime remaining 

• The DSSM offers AES 256-bit CTR encryption with four key policies including Universal, Shared, Standard, and Volatile. This covers a wide variety of use cases, including government, corporate, and sports coverage 

• LectroRM (available separately) is a third-party mobile application for iOS and Android smartphone operating systems. Its purpose is to make changes to the settings on the DSSM transmitter by delivering encoded audio tones to the microphone attached to the transmitter 
• When the tone enters the transmitter, it is decoded to make a change toa variety of different settings such as input gain, frequency, and more 

• Compatible with DSQD, DCHR, M2Ra, DSR, DSR4, and DCR822 receivers
• Audio-input connector: LEMO 3-pin
• IP57 rating: avoids water ingress for 30 minutes or more when submerged under 3.3' of water
• Removable battery: the DSSM uses an LB-50 rechargeable lithium-ion battery
• Easy-to-use onboard buttons and rich display, with the same menu structure as the company's DBSM family of transmitters
• USB jack located inside the battery compartment for firmware updates in the field, using Wireless Designer software
• All-metal construction
• Removable antenna with SMA mount
• RF Power settings at 10 and 35mW in D2 mode and 2mW for HDM mode
• AES 256-bit CTR encryption with four key policies including universal, shared, standard, and volatile (this covers a wide variety of use cases, including government, corporate, and sports coverage)
• Includes flexible, repositionable wire belt clip

Related Questions and Answers

Q: 1. Will this plug-in transmitter work with the EW-DX line of receivers? I'd like to replace my EW receivers and SKP2000 transmitte

A: No, the Sennheiser EW-DP SKP Digital Plug-On Wireless Transmitter/Recorder is not compatible for use with the Sennheiser EW-DX series receivers.

Q: 2. is this price for a pair or single

A: This antenna is a single unit.

Q: 3. The Sennheiser video says 32 bit float recording but the specs given by BH say 24 bit. Which is correct?

A: The sample rate for the Sennheiser EW-DP SKP Digital Plug-On Wireless Transmitter/Recorder (Q1-6: 470 to 526 MHz) is 24-bit.

Q: 4. Is this SKP 500 G4 plug-on transmitter compatible with the EK 100 G4 Receiver (instead of the EK 500), or with an older G3 receiver?

A: Yes, the SKP 500 G4 plug-on transmitter is compatible for use with the EK 100 G4 receiver or an older G3 receiver, but only if the components operate on the same frequency band.

Q: 5. Can the 48v Phantom Power be switched off if not needed?

A: Yes, the 48v phantom power can be turned off for dynamic microphones.

Q: 6. Can this mic be used with the UWP-D11 receivers? And more specifically, can they sync channels with the IR feature found on the side of the UWP D11 receiver pack?

A: Yes, this mic can be used with a receiver from the UWP-D11 system. There is an IR sensor on the bottom of the mic to allow for IR syncing. Please note, the transmitter frequency range must match that of the receiver.

Q: 7. Can I use with MKH 70?

A: Hello Mikhail - the SKP 500 is capable of providing the 48V Phantom Power required by the MKH 70; please note that the SKP 500 is a transmitter only and you'll need to pair it with a receiver (i.e. EK 500 G4) or purchase a system (i.e. EW 500 BOOM G4) to ensure you have all the appropriate products for a successful shoot.

Q: 8. Hi will it work with the G3 recever? Thankz

A: Yes it will work with the G3 system, just make sure to match the frequency!

Q: 9. WHAT RECEIVER DO I NEED FOR THIS?

A: Ideally you will get the EK500 receiver (for portable/camera work) or the EM500 for rack mount). It is also compatible with the 100 and 300 EW Evolution receivers, but in that case, not all frequencies of the transmitter will be available on the receiver. If you want it for camera work, this transmitter is also sold as a kit with a receiver, or as a kit with a receiver, body pack transmitter, MKE2 lav. Item# SEEW500BG4G1 and Item# SEEW500FILM1

Q: 10. Is this digital Wireless Transmitter compatible with the Sennheiser analogue system with the same frequency bandwidth?

A: The Sennheiser EW-DP SKP Digital Plug-On Wireless Transmitter/Recorder is not compatible with older analog models of Sennheiser wireless receivers.