Shure ADX2/SM58 – Handheld Wireless Transmitter, 470-616 MHz (G57)

Product Overview

The Shure ADX2/SM58 is a handheld wireless microphone transmitter built for commercial AV, broadcast, and live-event deployments that require dependable RF performance in the 470-616 MHz (G57) band. Pairing the industry-standard SM58 cardioid dynamic capsule with Shure's Axient Digital wireless platform, this transmitter is the right choice for integrators specifying a commercial AV wireless microphone system for regions or installations governed by the G57 frequency allocation. ShowLink remote control and AES 256-bit encrypted digital transmission make it suitable for conference room, house of worship, and broadcast environments where signal security and mid-show adjustability matter. This specific 470-616 MHz variant is a distinct SKU from the 606-663 MHz and 941-960 MHz Axient Digital handheld transmitter options, so integrators should confirm regional frequency compliance before specifying.

Product Description

The ADX2/SM58 extends Shure's Axient Digital wireless microphone lineup with a handheld transmitter tuned to the 470-616 MHz (G57) band, giving system designers a frequency-compliant option for markets and venues where this range is licensed for wireless audio use. Built around the SM58 cardioid dynamic capsule, the transmitter delivers the vocal clarity and off-axis rejection AV integrators expect from this microphone in corporate and institutional settings. The cast aluminum housing and internal helical antenna are engineered for daily use in commercial meeting spaces, training rooms, and broadcast studios where equipment gets moved, passed between presenters, and stored between events. ShowLink technology allows a technician to adjust gain, RF power, and other transmitter parameters remotely, without walking on stage or interrupting a presentation. Two transmission modes, Standard and High Density, let integrators tune coordination between maximum operating range and channel count depending on how many wireless mics are running in the same room. Infrared sync speeds up channel assignment during setup and teardown for multi-purpose rooms and rental/staging applications. The transmitter charges on contacts compatible with Shure's SBC240 and SBM920 charging accessories, supporting rack-mounted charging stations in AV equipment racks. Because this SKU is fixed to the 470-616 MHz band, it should be paired with an Axient Digital receiver and other system components tuned to the same G57 frequency range for proper RF coordination. Typical buyers include AV integrators outfitting boardrooms and all-hands rooms, broadcast facilities standardizing on Axient Digital, and government or institutional procurement teams sourcing frequency-compliant wireless microphone systems for a defined region.

Key Features

• SM58 Cardioid Capsule — Delivers the vocal clarity and consistent off-axis rejection standard on stages and in conference rooms worldwide.
• 470-616 MHz (G57) Frequency Band — Tuned for regions and installations licensed under the G57 allocation, distinct from the K54 and X55 band variants.
• Axient Digital Wireless Platform — Provides AES 256-bit encrypted digital transmission for secure commercial and government AV deployments.
• ShowLink Remote Control — Lets a technician adjust transmitter settings in real time without physically handling the microphone.
• Selectable RF Output Power — 2, 10, or 40 mW settings balance operating range against battery runtime and spectrum congestion.
• Standard and High Density Transmission Modes — Optimizes coordination between maximum range and channel count for multi-microphone systems.
• Rechargeable Battery System — Runs up to 9 hours on the SB920A battery and docks directly on compatible Shure charging accessories.
• Backlit LCD Display — Shows battery status, channel, group, and signal strength for quick verification before a presentation or service.
• Durable Aluminum Housing — Cast aluminum, moisture-resistant construction built for repeated handling in commercial AV environments.

Typical Applications

• Boardroom
• Conference room
• Commercial meeting space
• House of worship
• Government space
• Multi-purpose room
• All-hands room
• Training room
• Broadcast studio
• Auditorium

Technical Specifications

Frequently Asked Questions

Is the ADX2/SM58 (470-616 MHz) compatible with other Axient Digital components?
Yes, but the receiver and any other paired transmitters must be tuned to the same 470-616 MHz (G57) frequency band. Mixing G57 transmitters with K54 or X55 band receivers will not function correctly.

Why does this transmitter only cover 470-616 MHz instead of the full Axient Digital tuning range?
This SKU is the G57 band variant, built for regions and installations where that specific frequency allocation is licensed for wireless microphone use. Creation Networks also stocks 606-663 MHz and 941-960 MHz variants of this same transmitter for other regulatory regions.

What battery and charging accessories work with this transmitter?
The ADX2/SM58 uses the SB920A rechargeable battery and is compatible with Shure's SBC240 docking chargers and SBM920 charging modules for rack-mounted charging setups.

Can this transmitter be adjusted remotely once installed?
Yes. ShowLink remote control allows a technician to change gain, RF power, and other parameters from a receiver or software interface without handling the microphone directly.

Does this transmitter require a specific receiver for AV system integration?
It requires an Axient Digital receiver tuned to the 470-616 MHz (G57) band. Confirm frequency band compatibility across all system components before finalizing an AV system design.

What is the manufacturer warranty on this transmitter?
The ADX2/SM58 carries Shure's standard manufacturer warranty. Contact Creation Networks for current warranty terms and registration details specific to this unit.

Is this transmitter suitable for a permanently installed commercial AV system?
Yes. Its durable aluminum housing, encrypted digital transmission, and ShowLink remote control make it a fit for boardrooms, training rooms, houses of worship, and other fixed commercial AV installations, as well as touring or rental applications.

Who can help with system design or frequency coordination for this transmitter?
Creation Networks' AV team can assist with frequency coordination and system design questions for Axient Digital deployments using the 470-616 MHz band.