Shure ADX2/B87A Axient Digital Handheld Wireless Transmitter — K54 (606-663 MHz)
ADX2/B87A Overview
The Shure ADX2/B87A is a professional handheld wireless transmitter in the Axient Digital series, designed for demanding live performance, broadcast, and touring applications where RF reliability and audio quality are non-negotiable. It pairs the Beta 87A supercardioid condenser cartridge with a sleek, full-metal body in a black finish, delivering the smooth, controlled pickup pattern that engineers trust for lead vocal applications. The transmitter operates in the K54 band (606-663 MHz) with up to 184 MHz of tuning bandwidth, providing substantial spectrum flexibility in congested RF environments. It is purpose-built for audio engineers, system integrators, touring companies, and broadcast facilities that require professional-grade wireless performance.
ShowLink remote control enables real-time parameter adjustments directly from the front-of-house position, streamlining show management without requiring physical access to the transmitter. Advanced rechargeability support further reduces operational overhead for multi-show deployments.
Key Features
- Beta 87A Condenser Cartridge — Supercardioid polar pattern with the controlled, low-proximity-effect response of the industry-standard Beta 87A, optimized for lead vocal applications
- K54 Frequency Band (606-663 MHz) — Operates across a dedicated 57 MHz segment of the K54 range, suited for coordination in the UHF spectrum
- Up to 184 MHz Tuning Bandwidth — Wide tuning range across the Axient Digital platform provides maximum flexibility for frequency coordination in dense RF environments
- ShowLink Remote Control — Allows real-time adjustment of transmitter parameters from the mixing position, including gain, mute, and other key settings without interrupting performance
- Advanced Rechargeability — Compatible with Shure’s rechargeable battery solutions, reducing consumable costs and supporting sustainable multi-show workflows
- Interference Protection — Axient Digital architecture includes advanced interference detection and avoidance capabilities to maintain signal integrity in challenging RF conditions
- Full-Metal Construction, Black Finish — Durable metal handheld body built for the rigors of live performance and touring, with a professional black finish

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