Shure ULXD2/K11B Digital Handheld Transmitter with KSM11 Capsule G57 Band (470-608 MHz)e

The ULXD2/K11B is a professional digital handheld transmitter for Shure ULX-D systems. It integrates the KSM11 cardioid condenser capsule, engineered for detailed, modern vocal clarity with strong off-axis rejection and a built-in 3-layer pop filter to reduce plosives. A rugged machined-aluminum body, integrated antenna, and backlit LCD support reliable operation for touring, corporate, worship, and broadcast environments.

Security and RF management features include AES-256 encryption, Shure Gain Ranging, selectable 1/10/20 mW RF power, IR sync, and frequency/power lockouts. Flexible power options cover AA batteries or Shure SB900-series Li-ion packs, with external charge contacts for SBC docking chargers.

Key Features

• Included Capsule: KSM11 cardioid condenser (interchangeable capsule design)
• Digital Audio: 24-bit / 48 kHz
• Security: AES-256 encryption
• Gain Ranging: Automatic optimization of input range
• RF Output Power: 1 / 10 / 20 mW, selectable
• Tuning & Band: G57 (470–608 MHz) with up to 138 MHz tuning range
• Range & Latency: up to 100 m (328 ft); < 2.9 ms latency
• Controls & Sync: IR sync, backlit LCD, frequency/power lockouts, power/mute switch
• Construction: Machined aluminum body; integrated antenna
• Power Options: 2 × AA or SB900-series Li-ion; external charging contacts (SBC200/SBC220)

Technical Specifications

• Model / Band: ULXD2/K11B=-G57 (470–608 MHz)
• Tuning Bandwidth: up to 138 MHz (region dependent)
• Operating Range: up to 100 m (328 ft)
• Latency: < 2.9 ms
• RF Output Power: 1 / 10 / 20 mW (selectable)
• Audio Frequency Response: 20 Hz–20 kHz system (microphone dependent); KSM11 vocal voicing
• Dynamic Range: > 120 dB
• Gain Range: 0 to +21 dB in 3 dB steps
• Battery Life: ~11 hr (2 × AA); up to ~8–12 hr with SB900-series (usage dependent)
• Display: Backlit LCD
• Antenna: Integrated
• Housing: Machined aluminum
• Dimensions (L × Dia): 10.1" × 2.0" (25.6 × 5.1 cm)
• Weight (without batteries): 12.0 oz (0.34 kg)

What's Included

• 1x ULXD2/K11B handheld transmitter (G57)
• 1x WA371 microphone clip
• 2x AA batteries
• 1x Storage bag