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The Shure ULXD2/B87A is a digital handheld wireless microphone transmitter compatible with ULX-D and QLX-D receivers. It comes equipped with the Beta 87A supercardioid condenser capsule designed to withstand extreme sound pressure levels, while still delivering a remarkably smooth frequency response for vocal performers and presenters. The capsule features a supercardioid polar pattern that offers excellent rejection of off-axis background noise, helping to reduce feedback.
With a rugged, yet lightweight aluminum housing, the ULXD2/B87A transmitter delivers pristine audio quality and RF performance, AES 256-bit encryption for secure transmission, and advanced rechargeability options for professional sound reinforcement applications.
Clear, Accurate Audio with Interchangeable Capsule
- The unit delivers clear, reliable 24-bit/48 kHz digital audio over its entire 330' range, great for live performances and presentations in music venues, houses of worship, and conference spaces.
- The Beta 87A supercardioid condenser capsule handles SPL levels up to 140 dB and offers a smooth frequency response with a gradual presence rise and controlled proximity effect tailored for vocals
- The interchangeable capsule design allows you to replace the Beta 87A capsule with a Shure capsule that’s ideal for your application and simply screw it onto the transmitter—including SM58, SM86, SM87A, Beta 58A, Beta 87C, KSM9 capsules, and more.
User-Friendly Features in a Rugged Housing
- The unit quickly syncs with a wireless receiver via infrared at the touch of a button.
- Shure Proprietary Gain Ranging automatically adjusts the mic input level, eliminating the need for transmitter gain adjustments.
- The power button conveniently doubles as mute switch, while preserving RF lock.
- Frequency and power lockout functions prevent accidental or unauthorized changes during events.
- A backlit LCD with easy-to-navigate menu and controls lets you quickly access frequency, group, and channel settings, along with mute and lock status, RF output, and remaining battery life.
- 1/10/20mW selectable RF output power allows you to increase either the transmitter's range or the number of mics operating simultaneously.
Convenient Power Management Options
- Operates for up to 11 hours on two AA batteries.
- Optional Shure SB900A lithium-ion rechargeable battery pack offers intelligent power management with over 12 hours of battery life, precision metering in hours and minutes, and zero memory effect.
- External charging contacts allow for docked battery charging with the SBC200 dual-docking charger (available separately).
- The networkable SBC220 charger (available separately) allows for remote power monitoring via Shure’s Wireless Workbench software.
Shure ULXD2 Specs
| Wireless Transmission | Digital VHF |
| RF Frequency Band | V50: 174 to 216 MHz |
| RF Bandwidth | 42 MHz |
| Frequency Step Size | 25 kHz |
| Max Operating Range | 328.1' / 100 m |
| Sample Rate/Resolution | 48 kHz / 24-Bit |
| Latency | <2.9 ms |
| Encryption | AES 256 |
| Modulation | Proprietary |
Transmitter
| Form Factor | Handheld |
| RF Output Power | 1 / 10 / 20 mW (Switchable) |
| Audio I/O | None |
| Muting | Off/On Switch |
| Gain Range | 0 to 21 dB (3 dB Steps) |
| Sync Method | IR |
| Antenna | 1 x Internal Single-Band Helical |
| Power Requirements | Battery |
| Battery Type | 2 x AA (Included) 1 x Shure SB900A (Not Included, Replaceable) |
| Approx. Battery Life | Med.: 11 Hours (Alkaline) Med.: 12 Hours (Lithium Shure SB900A) |
| Display & Indicators | 1 x Backlit LCD (Battery Status, Channel, Group, Mute, RF Output Power, Sync) |
| Housing | Aluminum |
| Operating Temperature | 0 to 122°F / -17 to 50°C |
| Storage Temperature | -20 to 165°F / -28 to 73°C |
| Dimensions | 10.1 x 2" / 256 x 51 mm |
| Weight | 12 oz / 340 g |
Microphone
| Form Factor | Handheld |
| Sound Field | Mono |
| Capsule | Electret Condenser |
| Polar Pattern | Supercardioid |
| Frequency Range | 20 Hz to 20 kHz |
| SNR | 70.5 dB A-Weighted |
| Equivalent Noise Level | 23.5 dB |
| Maximum SPL | 140.5 dB SPL |
| THD | 1% |
| Impedance | 150 Ohms |
| Sensitivity | -52.5 dBV/Pa |