Shure ADX2/B87A=-K54 ADX HH 606-663 MHZ

The Shure ADX2/B87A (also labeled AD2/B87A=-K54 for the K54 frequency band, 606–663 MHz) is a professional‑grade digital handheld wireless microphone transmitter designed for use with Shure Axient Digital Wireless Systems. It integrates a high‑performance Beta 87A condenser microphone capsule with advanced wireless transmission technology to deliver exceptional vocal clarity and reliable RF performance in demanding live sound, broadcast, and theatrical environments. It supports wide tuning range and interference avoidance features, with secure encrypted digital transmission and remote control capabilities.

Features:

Construction & Design

• Rugged, durable metal housing with moisture resistance and professional black finish.

• Lightweight handheld design optimized for live performance use.

• Backlit LCD display for clear view of settings and status.

Microphone & Audio

• Equipped with Beta 87A condenser microphone capsule with supercardioid polar pattern—excellent off‑axis rejection and feedback control.

• Wide audio frequency response suitable for vocals and speech.

• High maximum input level handling (up to ~145 dB SPL typical).

Wireless Performance

• Axient Digital wireless system compatibility for robust digital transmission.

• Wide tuning range in K54 band (606–663 MHz) with up to ~184 MHz overall tuning on Axient systems.