The black Shure ULXD6/C is a digital tabletop transmitter equipped with a cardioid boundary mic and compatible with ULX-D receivers. The cardioid polar pattern focuses audio capture in front of the mic and rejects much of the off-axis ambient noise, great for picking up one speaker or allowing two panelists sitting next to each other at a large table to share a single mic. The unit's low profile is ideal for applications such as video-conferencing where minimum visibility is required. A smart choice for situations where wired mics are impractical, this tabletop transmitter enables quick setup and tear down, and can be put away in a docking station (available separately) for storing and charging when the mic is not in use..

With rugged, yet lightweight plastic housing, the ULXD6/C transmitter delivers pristine 24-bit/48 kHz audio quality and RF performance over its entire 330' range. It offers AES 256-bit encryption for secure transmission and advanced rechargeability options, making it suitable for use in large meetings at conference and convention centers.

For ULX-D Digital Wireless Systems    Built-In Cardioid Boundary Mic    1/10/20mW RF Output Power    Configurable Mute Button with Status LED    High-Pass Filter Reduces Noise    Secure AES-256 Encryption    Networked Intelligent Charging    9 Hr with SB900A Rechargeable Battery

• The mute button that can be configured for momentary or push-on/push-off operation, with a bicolor LED indicating the mute status.
• The unit quickly syncs with a wireless receiver via infrared at the touch of a button.
• The high-pass filter reduces low-frequency noise caused by table vibration or air-conditioning systems.
• A power lockout function disables the power switch and prevents accidental changes during events.
• 1/10/20mW selectable RF output power allows you to increase either the transmitter's range or the number of mics operating simultaneously.
• Low latency makes the ULXD6 ideal for meetings that require live sound reinforcement.
• The transmitter is compatible with the full line of Shure's antenna-distribution components.

• The unit operates for up to 8 hours and 40 minutes on two AA batteries.
• An optional Shure SB900A lithium-ion rechargeable battery pack offers intelligent power management with over 9 hours of battery life, precision metering in hours and minutes, and zero memory effect.
• A USB port allows for docked battery charging with the SBC450 (4-bay) and SBC850 (8-bay) networked charging stations (available separately).
• The charging stations enable remote power monitoring via Shure's Wireless Workbench software.

Related Questions and Answers

Q: 1. Does it come supplied with the cardioid cartridge?

A: Yes - this microphone does include the Cardioid transducer.

Q: 2. does the mic hear vibrations on a floor such as dancers or people walking on a stage ?

A: The Shure MX391 will pick up vibration from the surface it is placed on.

Q: 3. Will this work with my BLX4 receiver?

A: Yes, the Shure BLX2/SM58 Handheld Wireless Microphone Transmitter with SM58 Capsule is compatible for use with the Shure BLX4 Wireless Receiver. This particular mic transmitter is tuned to operate within the H9 frequency band of 512 to 542 MHz. Be sure to check the frequency band that your receiver operates on as the transmitter and receiver both need to operate within the same frequency band.

Q: 4. For a city council meeting, where the members are facing an audience, I would assume a cardio pick-up pattern is better, as then it wouldn't pick-up as much sound from the audience?

A: That is correct. The omnidirectional version is good for round-table discussions.

Q: 5. Will 6 of these work in a meeting hall (25 people U table) without feedback?

A: Feedback is typically caused by sound from speakers bleeding back into a microphone, which creates a feedback loop. The Shure MX391 is an omnidirectional boundary microphone, so it will be particularly susceptible to feedback as there is no axis of rejection. Caution should be used if the microphone is connected to speakers in the same area, and the speakers should be faced away from the microphone to avoid feedback.

Q: 6. Can more than one mic be used with this receiver?

A: Although the Sennheiser SpeechLine Digital Wireless SL Rack Receiver DW-4-US is compatible with other Sennheiser Speechline transmitter modules such as the Sennheiser SpeechLine Digital Wireless SL Bodypack or the Sennheiser SpeechLine Digital Wireless SL Handheld Transmitter, only one transmitter can be paired with the receiver at a time.

Q: 7. Would this microphone work well for picking up noise on a basketball court for broadcast?

A: It depends on the sound you want recorded. This will pick up all the sound in the room (depending on the size of the room) which could include unwanted sounds from the crowd or other noises.

Q: 8. Will this mic work with MXW1 as wireless solution?

A: No, the Shure MX391 Microflex Cardioid Boundary Microphone is not compatible with the Shure MXW1 Hybrid Bodypack Transmitter.

Q: 9. Any suggestions on the ideal phantom power source to use this mic with my Panasonic AG-HMC40P camera? Thank you.

A: I don't use phantom power with this mic. I plug it directly into a Zoom recorder and it picks up everything I need it to.

Q: 10. Would one mic cover a 6 to 8 foot wide area with 2 to 6 people sitting at a witness table? Will be mixed with 9 other board member goose neck mics, the distance between the dias and the witness table is typically ten to 15 feet giver or take.

A: The abilities of the Shure MX391 Microflex Cardioid Boundary Microphone will likely be stretched when tasked with picking up voice from 6 to 8 feet, especially if some in this scenario are quiet speakers. For the best results in this specific situation, two MX391 would be ideal.