Shure ADX2/K8B Handheld Wireless Microphone Transmitter

The Shure ADX2/K8B=-K54 is a professional‑grade handheld digital wireless microphone transmitter designed for use with Shure Axient Digital Wireless Systems. It operates in the 606–663 MHz frequency band and delivers high‑quality audio and robust RF performance with advanced control features and secure transmission. It includes an interchangeable high‑performance microphone capsule and is built for demanding live sound, broadcast, and production environments.

Features

Audio & Transmission

• Wide tuning range with up to 184 MHz band coverage

• Digital UHF transmission with AES‑256 secure encryption

• Interference avoidance and control via ShowLink remote control

• Selectable RF output power levels (e.g., 2 mW, 10 mW, 40 mW)

• Two transmission modes: Standard for optimal coverage and High Density for maximum channel count

• Diversity antenna design for reliable signal performance

Microphone & Sound

• Includes high‑quality dynamic microphone capsule (e.g., KSM8 dual‑diaphragm)

• Cardioid polar pattern for clear, focused pickup and reduced feedback

• Automatic input staging optimizes gain setting

• Frequency response flat and wide for vocal clarity

Power & Runtime

• Uses rechargeable SB920A lithium‑ion battery(s)

• Up to approximately 9 hours of continuous operation on a full charge

• External docking contacts for simplified battery charging