Shure ULXD2/K11B=-G50 ULXD2/K11B Handheld Transmitter

Vendor: Shure
Shure RPM263 Replacement grille for use with KSM11, nickel finish The Shure ULXD2/KSM11B is a digital handheld wireless microphone transmitter designed to work seamlessly with ULX-D receivers. Featuring a KSM11B condenser capsule, it...
$1,515.00 $1,895.00

Shure RPM263 Replacement grille for use with KSM11, nickel finish

The Shure ULXD2/KSM11B is a digital handheld wireless microphone transmitter designed to work seamlessly with ULX-D receivers. Featuring a KSM11B condenser capsule, it boasts a cardioid polar pattern that ensures consistent off-axis rejection, directing audio capture toward the talent while minimizing background noise. The capsule's aluminum and steel grille provides durable protection for the microphone and includes a 3-layer pop filter to reduce breath and plosive noises. Equipped with a built-in shock mount, this transmitter effectively reduces handling noise during live performances, resulting in clearer vocals. With its deep cardioid pattern, it offers robust gain before feedback and minimal off-axis coloration, delivering a warm, full sound. Built with rugged yet lightweight aluminum housing, the ULXD2/KSM11B transmitter guarantees pristine audio quality and RF performance. It also features AES 256-bit encryption for secure transmission, along with advanced rechargeability options, making it an ideal choice 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 KSM11B is a proprietary wireless condenser microphone capsule utilizing a 3/4" gold diaphragm and premium electronics for exceptional dynamic range and transient response.
  • The capsule features a highly consistent, deep cardioid polar pattern that reduces off-axis phase distortion for pristinely focused vocal reproduction to provide rich and full low-frequency response, linear and transparent midrange, and natural high-end detail.
  • The dent-resistant, three-stage "pop" protection grille reduces plosives, wind, and other breath noise.
  • The interchangeable capsule design allows you to replace the KSM11B capsule with a Shure capsule that’s ideal for your application and simply screw it onto the transmitter—including the KSM9, KSM9HS, SM58, SM86, SM87A, Beta 58A, Beta 87A, Beta 87C 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.


  • For ULX-D Digital Systems
  • KSM11B Condenser Mic Capsule
  • Cardioid Polar Pattern
  • Interchangeable Capsule Design
  • Adjustable Input Gain
  • 1/10/20mW RF Output Power
  • Mute Mode, Backlit LCD
  • Secure AES-256 Encryption
  • Networked Intelligent Charging
  • 12-Hour SB900A Rechargeable Battery
Wireless Technology Digital UHF
Max Operating Range 328.1' / 100 m
Transmitter Type Handheld
Audio I/O No
Microphone Type Handheld Capsule
Polar Pattern Cardioid
RF Frequency Band G50: 470 to 534 MHz
RF Bandwidth 64 MHz
Frequency Step Size 25 kHz
Max Operating Range 328.1' / 100 m
Built-In Recorder No
Timecode Support No
Mobile App Compatible Yes: Android & iOS
App Name: ShurePlus Channels
Functionality: Adjust Settings, Remote Control, Setup
Sample Rate/Resolution 48 kHz / 24-Bit
Latency < 2.9 ms
Encryption AES 256
Modulation Proprietary
Transmitter Type Handheld
RF Output Power 1 / 10 / 20 mW (Switchable)
Audio I/O No
Included Cable Connector No
Muting Off/On Switch
Auto-Level Control No
Gain Range 0 to 21 dB (3 dB Steps)
Sync Method IR
Antenna 1x Internal Single-Band Helical
Power Requirements Battery
Battery Type 2x AA (Included)
1x Shure SB900A (Not Included, Replaceable)
Approx. Battery Life Med.:
11 Hours (Alkaline)
12 Hours (Lithium Shure SB900A)
Display & Indicators 1x Backlit LCD (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 10.9 x 2" / 278 x 51 mm
Weight 12.3 oz / 348 g
Microphone Type Handheld Capsule
Color Black
Sound Field Mono
Capsule Electret Condenser
Polar Pattern Cardioid
Frequency Range 50 Hz to 20 kHz
SNR 71.5 dB
Equivalent Noise Level 22.5 dB
Maximum SPL 151 dB SPL
Sensitivity -46.5 dBV/Pa at 1 kHz
Dynamic Range 128.5 dB
Output Connector No
Package Weight 1.43 lb