Description
The Shure ULXD2/KSM11B Digital Handheld Wireless Microphone Transmitter delivers exceptional vocal clarity and RF stability for professional live sound, broadcast, and enterprise AV environments. Designed for seamless integration with ULX-D wireless systems, this transmitter combines advanced digital UHF performance with the premium KSM11 condenser capsule to provide pristine, studio-quality audio on stage.
Featuring a highly consistent cardioid polar pattern, the KSM11 capsule ensures focused vocal pickup while minimizing background noise and off-axis coloration. Its integrated shockmount and multi-layer grille system reduce handling noise and plosives, resulting in clean, articulate sound even in demanding live environments.
Engineered for reliability and flexibility, the ULXD2 transmitter offers AES 256-bit encryption for secure transmission, an ultrawide 138 MHz tuning range, and selectable RF output power to optimize performance across various applications. With interchangeable capsule compatibility, intuitive controls, and advanced battery management options, this handheld transmitter is built for professionals who demand consistent, high-quality wireless audio.
| Specification | Details |
|---|---|
| Wireless Technology | Digital UHF |
| RF Frequency Band | G57: 470 to 608 MHz |
| Number of RF Channels | 5520 |
| Max Operating Range | 328.1 ft / 100 m |
| Max Transmitters per Band | Up to 47 |
| Latency | < 2.9 ms |
| Encryption | AES 256-bit |
| RF Output Power | Selectable: 1 / 10 / 20 mW |
| Sync Method | Infrared (IR) |
| Display | Backlit LCD |
| Mobile App Compatibility | ShurePlus Channels (iOS & Android) |
| Transmitter Type | Handheld |
| Capsule Included | KSM11 Condenser |
| Capsule Design | Interchangeable |
| Polar Pattern | Cardioid |
| Frequency Response | 50 Hz to 20 kHz |
| Maximum SPL | 151 dB |
| Sensitivity | -46.5 dBV/Pa (1 kHz) |
| Gain Range | 0 to 21 dB (3 dB steps) |
| Antenna Type | Internal Single-Band Helical |
| Muting | On/Off Switch |
| Battery Type | 2x AA (included) or SB900B Rechargeable (optional) |
| Battery Life | Up to 11 hours (AA), 8.5 hours (rechargeable) |
| Housing Material | Aluminum |
| Dimensions | 10.1 x 2 in (256 x 51 mm) |
| Weight | 12 oz (340 g) |
| Included Accessories | Swivel Adapter (WA371), 2x AA Batteries, Storage Bag |
Payment & Security
Your payment information is processed securely, and we do not store credit card details or access your credit card information.
Return Policy (Short Summary)
We offer a 30-day return window for most unopened, factory-sealed items.
Returns must be authorized before shipping back and must include all original packaging and accessories. Opened or used items are not returnable unless defective.
Some products—such as custom orders, special-order items, audio gear, software, and LED video walls—are non-returnable. Non-defective returns may be subject to a 20–30% restocking fee, and customers are responsible for return shipping costs.
For damaged or incorrect items, please contact us immediately.
From Scope to Sign-Off
A structured delivery process designed to reduce risk and keep projects moving.
Plan
Discovery, site review, requirements gathering, and project alignment. We define scope, constraints, and success criteria before any design work begins.
- Discovery calls & stakeholder interviews
- On-site survey & infrastructure review
- Requirements & use-case documentation
- Project scope, timeline & milestone alignment
Engineer
System design, schematics, signal flow, BOM development, and documentation. Every project leaves this phase with a complete engineering package.
- AV system design & signal flow diagrams
- Equipment selection & BOM development
- Rack layout & control system design
- As-built documentation package
Deploy
Procurement, logistics, installation, programming, commissioning, and training. We own the delivery from first shipment to final handoff.
- Authorized procurement & logistics coordination
- Physical installation & cable management
- Control system programming & configuration
- Commissioning, testing & end-user training
Support
Monitoring, maintenance, lifecycle planning, and long-term service agreements. We stay engaged long after project close.
- 24/7 remote system monitoring
- Preventive & reactive maintenance
- Technology lifecycle & refresh planning
- Long-term service level agreements
A decade of delivery — trusted by 275+ clients across industries
