Description
The Shure ULXD2/K8B Digital Handheld Wireless Microphone Transmitter is engineered for professional audio environments where clarity, reliability, and security are critical. Designed for seamless integration with ULX-D wireless systems, this handheld transmitter features the advanced KSM8 dual-diaphragm dynamic capsule, delivering consistent, natural vocal reproduction with minimized proximity effect and excellent off-axis rejection.
Built with a rugged yet lightweight aluminum housing, the ULXD2/K8B ensures dependable performance in demanding live events, corporate presentations, houses of worship, and broadcast applications. Its AES 256-bit encryption secures transmissions, while 24-bit/48 kHz digital audio guarantees pristine sound quality across its full operating range.
The interchangeable capsule design offers flexibility for different vocal applications, while intelligent features such as automatic gain adjustment, IR sync, and a backlit LCD streamline setup and operation. With selectable RF output power and extended battery options, this transmitter is optimized for both performance scalability and operational efficiency.
| Specification | Details |
|---|---|
| Wireless Technology | Digital UHF |
| RF Frequency Band | G57: 470 to 608 MHz |
| Number of RF Channels | 5520 |
| Max Operating Range | Up to 328 ft (100 m) |
| Latency | < 2.9 ms |
| Encryption | AES 256-bit |
| RF Output Power | Selectable: 1 / 10 / 20 mW |
| Transmitter Type | Handheld |
| Capsule Included | KSM8 Dual-Diaphragm Dynamic |
| Capsule Design | Interchangeable |
| Polar Pattern | Cardioid |
| Frequency Response (Mic) | 40 Hz to 16 kHz |
| System Frequency Response | 30 Hz to 20 kHz |
| Gain Range | 0 to 21 dB (3 dB steps) |
| Automatic Gain Control | Yes |
| Sync Method | Infrared (IR) |
| Display | Backlit LCD |
| Controls | Power / Mute Switch with Lock Function |
| Antenna | Internal Single-Band Helical |
| Battery Type | 2x AA (included) or SB900B Rechargeable (optional) |
| Battery Life | Up to 11 hours (AA), up to 8.5 hours (rechargeable) |
| Charging Compatibility | External charging contacts for dock chargers |
| Housing Material | Aluminum |
| Dimensions | 10.1 x 2 in (256 x 51 mm) |
| Weight | 12 oz (340 g) without batteries |
| Included Accessories | Swivel adapter, 2 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
