Shure SLX-D / DL4B Overview
The Shure SLXD15/DL4B offers videographers, journalists, documentary makers, and content producers a reliable wireless lavalier microphone system that delivers crystal-clear digital sound quality while also being quick and easy to set up, even if you're using multiple mics on set. Built around a rugged, single-channel receiver that can be camera-mounted or used in an audio bag, the system offers a comprehensive feature set that ensures professional-sounding, broadcast-ready results for demanding filmmakers and creators. This configuration includes a bodypack transmitter and a black DL4 DuraPlex omnidirectional lavalier microphone.
Transparent Digital Sound, Dependable Performance, and Multi-Mic Mode
- The SLX-D delivers 24-bit digital audio with a fast transient response, a 20 Hz to 20 kHz frequency response, and a 118 dB dynamic range, resulting in clear, accurate sound.
- Operating far away from potential Wi-Fi interference in the 2.4 GHz band, this configuration of the system transmits in the H55: 514 to 558 MHz UHF band, with a 44 MHz tuning range and 1760 frequencies it can autoscan to ensure a clean wireless signal.
- Digital Predictive Switching Diversity uses a microprocessor to switch between the two antennas before dropouts occur.
- A low latency of 3.2 ms helps ensure your sound and picture are easy to properly sync.
- The SLX-D's spectrum-efficient digital transmission technology allows for up to 32 mics to be used at once.
- Great for shoots with several cameras and microphones, Multi-Mic Mode lets you scan and create a list of clean frequencies, which you can send to multiple receivers via IR.
- Each receiver will sync to the appropriate transmitter at the touch of a button settings on the transmitters like the input gain and high-pass filter are also recalled.
- Multi-Mic Mode makes channel allocation easier and more efficient since the receivers aren't all auto-scanning and competing for open frequencies.
Bodypack Transmitter with DL4 DuraPlex Omni Lavalier Mic
- This configuration comes with a miniature DL4 lavalier microphone optimized for speech intelligibility and equipped. The mic features a forgiving omnidirectional polar pattern that picks up sound in a 360º pattern around the capsule, making it easy to place on talent and get great sounding results.
- The DL4 features an IP57 rating, meaning it's protected from dust ingress and is waterproof at a depth up to 3.3'.
- The lavalier mic plugs securely into the locking TA4M connector on the compact and discreet SLXD1 bodypack transmitter.
- The rugged, plastic transmitter has a belt clip that attaches to the talent's clothing and an LCD that shows essential information.
- The mic offset function provides up to +21 dB of gain to boost low-volume speech and ensure multiple microphones are at similar levels.
- Engage the 150 Hz high-pass filter to reduce distracting, unwanted low-end for clearer speech.
- A selectable 1/10mW RF output allows you to increase the transmission power for long wireless distances or to overcome interference if necessary, and the system provides a transmission range up to 330'.
- Two AA batteries or an SB903 rechargeable battery (available separately) will power the unit for up to 8 hours.
Rugged Receiver Ready for Camera or Audio Bag
- Powerful and portable, the SLXD5 is a single-channel digital wireless receiver for on-camera cold shoe mounting and audio bag use, featuring user-configurable front-panel controls and a bright OLED screen for key system function readouts and remaining battery life.
- Housed in a tough metal chassis with adjustable front-mounted antennas, the SLXD5 is a great fit for on-the-go shooting rigs.
- It offers adjustable gain control and dual 3.5mm outputs including a headphone monitor out and switchable line/mic output. Additional features include automatic frequency scanning and IR sync to easily link the transmitter and receiver to the same frequency.
- Two AA batteries or an SB903 rechargeable battery (available separately) will power the unit for up to 5.5 hours.
- The receiver's USB-C port can be used to recharge the SB903 battery or power the unit.
Optional Rechargeable Battery Management
- Adding the SB903 lithium-ion rechargeable battery, along with an SBC10-903 single charger, SBC203 dual-docking charger, or SBC80-903 8-bay charger offers a cost-effective and environmentally friendly alternative to throwing away AA batteries (batteries and chargers available separately).
- Using the SB903 battery and SBC203 charger simplifies the task of keeping multiple transmitters charged and ready-you can even recharge the battery while still in the transmitter or receiver.
- When powered by an SB903, the transmitter and receiver both display the remaining battery life in hours and minutes.
- For bag use, the SBC-DC-903 battery eliminator (available separately) allows you to power the receiver from your mixer's battery.
A Variety of Mics and Transmitters Available
Shure offers numerous lavalier, headset, and handheld microphone options to adapt your SLX-D system as your needs evolve.
- The discrete UL4 UniPlex subminiature cardioid lav provides directional pickup, exceptional clarity, and a discreet, low-profile appearance.
- The WL184 lavalier features a supercardioid pickup pattern that helps to reduce feedback problems when sound reinforcement equipment is used.
- The SLXD2 handheld transmitter is available with several mic capsules choices for presenters who prefer the flexibility of a handheld microphone.
- Add the XLR microphone of your choice to the system with the SLXD3, a plug-on transmitter with a secure locking connector that features both 12 and 48V phantom power for condenser mics.
Shure SLX-D / DL4B Specs
Key Specs
Wireless Technology | Digital UHF |
Included Transmitters | 1x Bodypack with Microphone |
Diversity | True Digital Diversity |
Max Operating Range | 328' / 100 m |
Receiver Type | Camera-Mount |
Microphone Type | Lavalier |
Polar Pattern | Cardioid |
System
Wireless Technology | Digital UHF |
Number of RF Channel Frequencies | 1840 |
Included Transmitters | 1x Bodypack with Microphone |
Diversity | True Digital Diversity |
RF Frequency Band | H55: 514 to 558 MHz |
RF Bandwidth | 46 MHz |
Frequency Step Size | 25 kHz |
RF Channel Scanning | Auto-Scan |
Max Operating Range | 328' / 100 m |
Max Transmitters per Band | 32 |
Built-In Recorder | No |
Timecode Support | Yes |
Mobile App Compatible | No |
Sample Rate/Resolution | 24-Bit |
Latency | 3.2 ms |
Dynamic Range | 118 dBA (Typical) |
Encryption | No |
THD | <0.02 % |
Receiver
Receiver Type | Camera-Mount |
Mounting Options | Shoe-Mount (with Included Hardware) |
Antenna | 2x 1/4 Wave Flexible Whip, Fixed (Front-Mount) |
Number of Audio Channels | 1 |
Built-In Microphone | No |
Audio I/O | 1x 1/8" / 3.5 mm TRS Female Balanced Mic/Line Output (Locking) 1x 1/8" / 3.5 mm TRS Female Unbalanced Headphone Output |
Audio Output Level | 1/8" / 3.5 mm Output: +15 dB (Line Level, Balanced) |
Phantom Power Protection | No |
Frequency Response | 20 Hz to 20 kHz +1/-2 dB (Dependent on Mic) |
Network I/O | No |
USB/Lightning Connectivity | 1x USB-C Female (Bus Power, Charging) |
USB Class-Compliant | No, USB Charging/Power Only |
Impedance | 1/8" / 3.5 mm Output: 450 Ohms (Balanced) |
Spurious | Rejection: >75 dB |
Power Requirements | Battery, Bus Power (USB) |
Battery Type | 2x AA (Included) 1x Shure SB903 (Not Included) |
Approx. Battery Life | 5.5 Hours |
Display & Indicators | OLED (AF Level, Battery Status, Channel, Frequency, Group, Menu Navigation, Metering, Multifunction, Output Level, RF Level, Sync, Transmitter Battery Status) |
Housing | Aluminum |
Operating Temperature | 0 to 122°F / -17 to 50°C |
Storage Temperature | -20 to 165°F / -28 to 73°C |
Dimensions | 2.7 x 4.2 x 1" / 68 x 107 x 25.3 mm |
Weight | 0.4 lb / 182 g |
Transmitter
Transmitter Type | Bodypack with Microphone |
RF Output Power | 1 / 10 mW |
Built-In Microphone | No |
Audio I/O | 1x TA4/Mini-XLR 4-Pin Male Unbalanced Input (Locking) |
Pad | No |
Muting | Off/On Switch |
Audio Input Level | 8.2 dBV (Max) |
Auto-Level Control | No |
Gain Range | 0 +21 dB |
Signal Processing | No |
Frequency Response | 20 Hz to 20 kHz |
Sync Method | IR |
Antenna | 1/4 Wave External, Fixed |
Power Requirements | Battery |
Battery Type | 2x AA (Included) 1x Shure SB903 (Not Included) |
Battery Charging Time | 1.25 to 5.5 Hours |
Approx. Battery Life | 8 Hours (Lithium Shure SB903) |
USB/Lightning I/O | No |
Display & Indicators | LCD (Battery Status, Channel, Group) |
Housing | ABS, Plastic |
Operating Temperature | 0 to 122°F / -17 to 50°C |
Storage Temperature | -20 to 165°F / -28 to 73°C |
Dimensions | 2.7 x 3.9 x 1" / 68 x 98 x 25.5 mm |
Weight | 3.1 oz / 89 g |
Microphone
Microphone Type | Lavalier |
Color | Black |
Sound Field | Mono |
Capsule | MEMS |
Polar Pattern | Cardioid |
Frequency Range | 20 Hz to 20 kHz |
SNR | 63 dB |
Equivalent Noise Level | 31 dB A-Weighted |
Maximum SPL | 132 dB SPL |
THD | < 1% |
Sensitivity | -42.5 dBV/Pa |
CMRR | No |
Dynamic Range | 101 dB |
Output Connector | 1x TA4F/Mini-XLR 4-Pin Female Unbalanced |
Cable Length | 5.48' / 1.67 m |
Operating Voltage | 5 V |
Operating Current Consumption | 220 µA |
Length | 0.6" / 14.5 mm |
Diameter | 0.2" / 5.2 mm |
Weight | 0.5 oz / 15 g |
Packaging Info
Package Weight | 2.355 lb |
Box Dimensions (LxWxH) | 16.2 x 8.1 x 3.4" |
In the Box
- Shure SLXD15/DL4B Digital Camera-Mount Wireless DuraPlex Omni Lavalier Mic System (H55: 514 to 558 MHz)
- Windscreen
- Lapel Clip
- Locking 3.5mm TRS to 3.5mm TRS Cable
- Locking 3.5mm TRS to XLR Cable
- 4 x AA Battery
- 2-Year Manufacturer Warranty
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