Shure ADX2TA/SM58=-G57 Digital Handheld Wireless Microphone Transmitter with SM58 Capsule (G57: 470 to 616 MHz) (TAA-Compliant)

Product Overview

The Shure ADX2TA/SM58=-G57 is a TAA-compliant Axient Digital handheld wireless transmitter equipped with the industry-standard SM58 cardioid dynamic vocal capsule, operating in the G57 band (470–616 MHz). This transmitter combines the proven reliability of the SM58 microphone element with the enterprise RF management capabilities of the Axient Digital platform, making it an accessible entry point into the ADX system for government facilities, conference rooms, and commercial AV deployments that require TAA compliance without the cost of condenser capsule options.

Product Description

The ADX2TA/SM58=-G57 delivers the full Axient Digital RF infrastructure — 184 MHz tuning range, ShowLink remote control, AES 256-bit encryption, and High Density mode — paired with the SM58 cardioid dynamic capsule. The SM58 requires no phantom power, handles high sound pressure levels without distortion, and maintains its cardioid polar pattern consistently across all use levels, making it a low-maintenance choice for AV integrators installing systems in environments where capsule care and handling are variable. Its spherical mesh grille provides built-in wind and pop noise reduction for vocal applications.

ShowLink enables real-time parameter management from the mix position via IEEE 802.15.4, and AES 256-bit encryption supports secure audio transmission for government and sensitive enterprise deployments. High Density mode supports larger numbers of simultaneous channels at 125 kHz channel spacing. For condenser capsule alternatives at similar price points on the Axient platform, see the Shure ADX2/B58 (Beta 58A capsule). For KSM8 dynamic capsule performance, see the Shure ADX2/K8N.

Key Features

• TAA Compliance — Manufactured per Trade Agreements Act requirements, eligible for US federal government and GSA schedule procurement without exceptions.
• SM58 Cardioid Dynamic Capsule — Industry-standard vocal element handles high SPL, requires no phantom power, and provides consistent cardioid polar pattern for reliable wireless vocal performance.
• Spherical Mesh Grille — Integrated wind and plosive noise reduction protects audio quality in handheld vocal applications without external accessories.
• G57 Frequency Band (470–616 MHz) — 184 MHz tuning range provides maximum frequency coordination flexibility in congested UHF environments.
• ShowLink Remote Control — IEEE 802.15.4 wireless link enables real-time transmitter management from the operator position without interrupting live audio.
• AES 256-Bit Encryption — Secures audio for government, legal, and enterprise security applications.
• High Density Mode — 125 kHz channel spacing enables significantly higher simultaneous channel counts for large multi-room deployments.
• Selectable RF Power (2/10/40 mW) — Adjustable transmit power balances operating range and battery runtime.
• SB920 Rechargeable Li-Ion Battery — Up to 9 hours runtime at 10 mW; zero memory effect with networked docked charging.
• Cast Aluminum Construction — Durable, lightweight professional-grade housing for commercial AV environments.

Typical Applications

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

Technical Specifications

Competitor Comparison

Frequently Asked Questions

Why choose the ADX2TA/SM58 over a condenser capsule variant like the K9B?
The SM58 dynamic capsule is a better choice for environments where the transmitter will be handled roughly, where presenters are accustomed to the SM58 feel and technique, or where phantom power management is a concern. Condenser capsules like the KSM9 offer higher sensitivity and a wider frequency response, but the SM58 is more durable, requires no phantom power, and delivers predictable cardioid performance in a broad range of AV applications.

What receiver is required?
This transmitter requires an Axient Digital receiver operating in the G57 band, such as the ADX4 or ADX4D. The frequency band of the transmitter and receiver must match.

Is this transmitter eligible for US government procurement?
Yes. The "TA" designation confirms TAA compliance. This unit is eligible for US federal contracts and GSA schedule purchases.

Can I upgrade the SM58 capsule to a KSM9 or other cartridge later?
Yes. The ADX2 body accepts all Shure wireless capsule accessories including the RPW184 (KSM9 Black), RPW170 (KSM8 Nickel), and RPW118 (Beta 58A). Capsule swaps require only unscrewing the transmitter handle — no tools or firmware updates needed.

What is the warranty on this product?
Shure provides a two-year limited warranty on the ADX2TA transmitter body and a one-year limited warranty on the SB920 battery. Contact your authorized Shure dealer for warranty service.