Shure ADX2FDTA/SM58=-X55 Digital Handheld Wireless Microphone Transmitter with SM58 Capsule (X55: 941 to 960 MHz) (TAA-Compliant)

Product Overview

The Shure ADX2FDTA/SM58=-X55 is a professional Axient Digital frequency diversity handheld wireless microphone transmitter with the SM58 cardioid dynamic capsule, operating in the X55 frequency band (941–960 MHz). This TAA-compliant transmitter brings the familiar SM58 vocal character to Shure’s flagship wireless platform with the added benefit of the X55 band’s spectrum position above standard UHF TV allocations. For commercial AV system designers who need TAA-compliant wireless in venues where G57-band spectrum is congested, the ADX2FDTA/SM58=-X55 provides a reliable alternative allocation with the RF resilience of dual-carrier frequency diversity technology.

Product Description

The ADX2FDTA/SM58=-X55 pairs the trusted SM58 cardioid dynamic capsule with Axient Digital’s frequency diversity platform in the 941–960 MHz X55 band. Operating in the X55 band provides AV system designers an additional spectrum option for venues where the G57 band is heavily utilized or reserved. The SM58 capsule’s controlled cardioid polar response and contoured vocal frequency characteristic make it a practical and proven choice for live reinforcement, conference presentations, and institutional installations. ShowLink® 2.4 GHz remote control gives operators real-time gain and mute control from the console position. SB920A rechargeable batteries deliver up to 6.5 hours in FD mode and up to 9 hours in single-carrier mode. For the G57-band version, see the Shure ADX2FDTA/SM58=-G57.

Key Features

• Frequency Diversity Transmission (X55 Band) — Simultaneous dual-carrier RF transmission in the 941–960 MHz band, maintaining signal continuity in congested spectrum environments.
• SM58 Cardioid Dynamic Capsule — Industry-standard live vocal capsule with a controlled cardioid polar pattern and vocal-optimized frequency response trusted across professional AV and broadcast applications.
• X55 Frequency Band (941–960 MHz) — Above-900 MHz allocation provides a spectrum alternative for venues where standard UHF bands are congested or unavailable.
• TAA-Compliant — Qualifies for U.S. federal, DoD, and GSA-funded procurement under Trade Agreements Act requirements.
• ShowLink® Remote Control — Real-time 2.4 GHz wireless parameter control during live events.
• SB920A Rechargeable Battery System — Two batteries included; up to 6.5 hours FD mode, up to 9 hours single-carrier.
• Standard and High Density Modes — Supports coverage-optimized and high-channel-count deployment configurations.
• Axient Digital Integration — Works with Axient Digital X55-band receivers, Wireless Workbench® 6, and ShureCloud.

Typical Applications

• Venues with congested sub-900 MHz RF environments requiring spectrum alternatives
• Government and federal agency wireless systems (TAA-compliant)
• House of worship live vocal reinforcement
• Auditorium and performing arts center installations
• Commercial conference room and boardroom AV systems
• Multi-band wireless system designs combining G57 and X55 allocations

Technical Specifications

Frequently Asked Questions

Why choose the X55 band for this transmitter?
The X55 band (941–960 MHz) operates above the standard UHF TV spectrum, providing an alternative frequency allocation in venues where G57 frequencies are congested or restricted. System designers should confirm local regulatory compliance for X55-band use before deployment.

What receivers are compatible with the ADX2FDTA/SM58=-X55?
This transmitter requires Axient Digital X55-band receivers. Frequency band must match between transmitter and receiver; G57-band receivers are not compatible with this unit.

Is this product TAA-compliant?
Yes. The TA suffix designates Trade Agreements Act compliance for U.S. federal, DoD, and GSA-funded procurement.

What is the performance difference between this and the G57 version?
Audio performance and RF features are identical. The only difference is frequency band: X55 (941–960 MHz) versus G57 (470–616 MHz). Band selection should be based on local spectrum availability and system design requirements.