Shure ADX2FDTA/K8B=-X55 Digital Handheld Wireless Microphone Transmitter with KSM8 Capsule (X55: 941 to 960 MHz, Black) (TAA-Compliant)

Product Overview

The Shure ADX2FDTA/K8B=-X55 is a professional Axient Digital frequency diversity handheld wireless microphone transmitter with the KSM8 dual-diaphragm cardioid dynamic capsule in black, operating in the X55 frequency band (941–960 MHz). Designed for commercial AV installations and broadcast deployments requiring spectrum above 900 MHz, this TAA-compliant transmitter meets U.S. federal procurement requirements. Frequency diversity technology transmits simultaneously on two independent RF carriers, maintaining signal continuity in environments with high RF traffic. The X55 band is particularly suited for deployments where UHF band congestion is significant or where spectrum coordination with existing G57-band systems is needed.

Product Description

The ADX2FDTA/K8B=-X55 brings the reliability of Shure’s Axient Digital frequency diversity platform to the 941–960 MHz X55 frequency band. The KSM8 dual-diaphragm cardioid dynamic capsule delivers a consistent, natural sound character ideal for live performance, broadcast, and conference environments. Operating in the X55 band provides AV system designers with an additional frequency allocation option for venues where UHF spectrum below 900 MHz is congested or reserved. ShowLink® 2.4 GHz remote control enables real-time adjustment of gain, mute, and RF parameters from the operator position without disrupting a live event. Included SB920A rechargeable batteries provide up to 6.5 hours runtime in frequency diversity mode and up to 9 hours in single-carrier mode. For a G57-band version of this same transmitter, see the Shure ADX2FDTA/K8B=-G57.

Key Features

• Frequency Diversity Transmission — Simultaneously transmits on two independent RF carriers in the X55 band, providing transmitter-level signal protection against interference and dropouts.
• KSM8 Dual-Diaphragm Cardioid Dynamic Capsule (Black) — Consistent cardioid polar pattern with a natural, detailed dynamic response suited for demanding live and broadcast vocal applications.
• X55 Frequency Band (941–960 MHz) — Operates above the congested UHF TV bands, providing an alternative spectrum allocation for venues where sub-900 MHz frequencies are unavailable or heavily utilized.
• TAA-Compliant — Qualifies for U.S. government, DoD, and GSA-funded procurement under Trade Agreements Act requirements.
• ShowLink® Remote Control — Real-time wireless parameter adjustment via 2.4 GHz from the mix position during live events.
• SB920A Rechargeable Battery System — Two batteries included; up to 6.5 hours in FD mode, up to 9 hours in single-carrier mode.
• Standard and High Density Transmission Modes — Supports both coverage-optimized and high-channel-count deployment configurations.
• Axient Digital Ecosystem Integration — Compatible with Axient Digital X55-band receivers, Wireless Workbench® 6, and ShureCloud.

Typical Applications

• Government and federal agency AV systems requiring X55-band spectrum (TAA-compliant)
• Venues with heavily congested sub-900 MHz RF environments
• Auditorium and large-format live sound where multi-band system design is required
• Broadcast studio vocal reinforcement
• House of worship main stage wireless systems
• Commercial conference and boardroom AV installations
• Multi-purpose room and training room deployments

Technical Specifications

Frequently Asked Questions

Why choose the X55 band over G57?
The X55 band (941–960 MHz) sits above the standard UHF TV spectrum and can offer a cleaner RF environment in venues where G57-band frequencies are congested. System designers should verify local regulatory compliance and coordinate with existing wireless systems before selecting a band.

What receivers are compatible with the ADX2FDTA/K8B=-X55?
This transmitter requires Axient Digital receivers configured for the X55 frequency band. Band matching between transmitter and receiver is required for proper operation.

Is the ADX2FDTA/K8B=-X55 TAA-compliant?
Yes. The TA suffix designates Trade Agreements Act compliance, qualifying this product for U.S. federal government, DoD, and GSA contract purchases.

Can I use this transmitter with G57-band receivers?
No. The X55 (941–960 MHz) and G57 (470–616 MHz) bands are not interchangeable. Transmitter and receiver must operate in the same frequency band.

Does frequency diversity work the same way in the X55 band?
Yes. The ADX2FD transmits simultaneously on two independent carriers within the X55 band, providing the same transmitter-level interference protection as in any other supported band.