Shure AD2TA/SM58=-G57 Digital Handheld Wireless Microphone Transmitter with SM58 Capsule (G57: 470 to 616 MHz) (TAA-Compliant)

Product Overview

The Shure AD2TA/SM58=-G57 is a TAA-compliant Axient Digital handheld wireless microphone transmitter fitted with the legendary SM58 dynamic cardioid capsule, operating in the G57 frequency band (470–616 MHz). This transmitter is built for commercial AV deployments and government procurement channels where TAA compliance is required, combining the proven SM58 capsule with the professional-grade Axient Digital RF platform. It delivers AES-256 encrypted wireless audio with High Density (HD) mode support, making it a reliable choice for live event production, commercial meeting spaces, and government facilities.

Product Description

The AD2TA/SM58=-G57 puts the industry-standard SM58 dynamic cardioid capsule on the Axient Digital wireless platform with full TAA compliance for government and institutional procurement. Operating across 470–616 MHz (G57 band) with selectable RF output power of 2, 10, or 35 mW, it provides coverage flexibility for rooms ranging from small conference spaces to large auditoriums. High Density mode supports up to 47 active channels in a single 6 MHz TV band, ideal for multi-room or high-channel-count installations. AES-256 encryption is standard, securing audio transmission in government buildings, secure conference rooms, and commercial facilities. The SM58 capsule handles SPL up to 145 dB at 1 kHz, withstands rough handling, and requires no phantom power—simplifying system setup. Battery runtime reaches up to 8 hours on alkaline AA batteries or 11 hours with the Shure SB900C rechargeable lithium-ion battery.

See also the Shure ADX2/B58 — the ADX-series Axient Digital transmitter with Beta 58A capsule and ShowLink remote control.

Key Features

• TAA Compliance — Meets Trade Agreements Act requirements, enabling procurement through GSA schedules and federal contracts without additional waivers.
• SM58 Dynamic Cardioid Capsule — Industry-standard dynamic capsule handles up to 145 dB SPL, requires no phantom power, and delivers consistent vocal performance in live and presentation applications.
• G57 Band (470–616 MHz) — Wide tuning range across 470–616 MHz provides ample clean spectrum for multi-channel commercial deployments.
• AES-256 Encryption — Hardware-level encryption prevents unauthorized monitoring, meeting security requirements for government and enterprise AV deployments.
• High Density (HD) Mode — Narrows channel spacing to 125 kHz for dramatically higher concurrent wireless channel counts in spectrum-limited environments.
• >120 dB Dynamic Range — Axient Digital platform maintains full dynamic range regardless of capsule choice, ensuring clean, artifact-free audio.
• Selectable RF Power (2/10/35 mW) — Choose from three power levels to optimize range, battery life, and spectral density for the deployment environment.
• Up to 11-Hour Battery Runtime — SB900C lithium-ion rechargeable battery or standard AA batteries, with external docking contacts for in-place charging.
• 100m Line-of-Sight Range — Reliable RF coverage across auditoriums, conference halls, and large commercial spaces when paired with Axient Digital receivers.
• Interchangeable Cartridge — Capsule can be swapped without tools to any Shure AD-series RPW cartridge (Beta 58A, Beta 87A, KSM9HS, VP68, and others).
• Cast Aluminum Housing with Lockable Controls — Rugged construction with menu and power lockout prevents unauthorized changes during deployment.

Typical Applications

• Live event production and commercial AV rental requiring TAA-compliant wireless systems
• Government facilities and federal buildings with GSA procurement requirements
• Conference rooms and multi-purpose commercial spaces
• House of worship and auditorium vocal reinforcement
• All-hands rooms and training rooms requiring reliable wireless coverage
• Broadcast studio and production environments needing encrypted RF

Technical Specifications

Frequently Asked Questions

Which receivers are compatible with the AD2TA/SM58=-G57?
This transmitter is compatible with all Shure Axient Digital AD and ADX series receivers (AD4D, AD4Q, ADX4D) operating in the same G57 frequency band. Always match transmitter and receiver frequency band before deploying.

Why choose the SM58 capsule over a condenser capsule?
The SM58 dynamic cardioid capsule is the standard for live vocal applications where handling noise rejection, SPL handling, and durability are priorities. It requires no phantom power and performs consistently in high-SPL environments. Condenser capsules such as the KSM9HS provide higher sensitivity and extended frequency response but are better suited to controlled acoustic environments.

What does TAA-compliant mean for this product?
TAA compliance makes this product eligible for procurement through GSA Schedules and federal contracts requiring Buy American compliance, covering government, defense, and institutional AV deployments.

Can the SM58 capsule be replaced with another Shure cartridge?
Yes. All AD-series replacement cartridges (RPW series) are interchangeable without tools. Compatible options include Beta 58A (RPW118), Beta 87A (RPW120), KSM9HS Nickel (RPW190), and VP68 (RPW124).

What is the maximum number of channels deployable with this transmitter?
In High Density mode, Axient Digital supports up to 47 active transmitters in a single 6 MHz TV channel, or up to 63 in an 8 MHz TV channel. Actual channel count depends on the frequency environment and receiver model.

What warranty applies to this product?
Shure provides a two-year limited warranty on the AD2 transmitter body. Contact Shure or your authorized dealer for service and RMA procedures.