Shure ADX2TA/K9B=-K54 Digital Handheld Wireless Microphone Transmitter with KSM9 Capsule (K54: 606 to 663 MHz, Black) (TAA-Compliant)

Product Overview

The Shure ADX2TA/K9B=-K54 is a TAA-compliant Axient Digital handheld wireless transmitter equipped with the KSM9 switchable-pattern condenser capsule in a black finish, operating in the K54 frequency band (606–663 MHz). Built for US federal government procurement and commercial AV deployment, it integrates with any K54-band Axient Digital receiver to deliver professional-grade wireless microphone performance in conference rooms, government facilities, and broadcast environments where both audio fidelity and TAA compliance are required.

Product Description

The ADX2TA/K9B=-K54 operates in the K54 band (606–663 MHz), providing AV integrators with a UHF frequency option suited for regions and facilities where G57 spectrum may be congested or unavailable. The KSM9 condenser capsule supports switchable cardioid and supercardioid polar patterns, giving operators flexibility to match pickup behavior to the acoustic environment without swapping hardware. ShowLink remote control via IEEE 802.15.4 enables real-time transmitter management from the mix position, and AES 256-bit encryption secures audio transmission in sensitive deployments. For a comparable K54-band transmitter with SM58 capsule, see the Shure ADX2TA/SM58=-K54. For the G57-band version of this transmitter, see the Shure ADX2TA/K9B=-G57.

High Density mode reduces channel spacing to 125 kHz for maximum simultaneous channel count in multi-room government campuses or large conference deployments. The SB920 rechargeable Li-Ion battery provides up to 9 hours of runtime at standard power with precision fuel-gauge metering and docked charging support.

Key Features

• TAA Compliance — Manufactured per Trade Agreements Act requirements, eligible for US federal government and GSA schedule procurement without exceptions.
• KSM9 Switchable-Pattern Condenser Capsule — Cardioid and supercardioid polar patterns in a single capsule adapt pickup behavior for different room configurations and feedback requirements.
• K54 Frequency Band (606–663 MHz) — UHF operation in the K54 band provides a frequency coordination alternative where G57 spectrum is unavailable or congested.
• ShowLink Remote Control — IEEE 802.15.4 wireless link enables real-time parameter management from Wireless Workbench without interrupting live audio.
• AES 256-Bit Encryption — Built-in encryption supports secure audio for government, legal, and enterprise security applications.
• High Density Mode — 125 kHz channel spacing enables significantly more simultaneous wireless channels in a given spectrum allocation.
• Selectable RF Power (2/10/40 mW) — Adjustable transmit power balances operating range and battery runtime. Note: output above 608 MHz is limited to 10 mW per FCC regulations for the K54 band.
• SB920 Rechargeable Li-Ion Battery — Up to 9 hours runtime at 10 mW with zero memory effect and networked docked charging.
• Cast Aluminum Construction — Durable, lightweight housing engineered for commercial-grade daily use in professional AV environments.
• Interchangeable Cartridge System — Compatible with Shure wireless capsule accessories for future reconfiguration without replacing the transmitter body.

Typical Applications

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

Technical Specifications

Competitor Comparison

Frequently Asked Questions

What receiver is compatible with the ADX2TA/K9B=-K54?
This transmitter is compatible with Axient Digital receivers operating in the K54 band. Always confirm the receiver frequency band matches the K54 transmitter before ordering to ensure proper system operation.

Is this eligible for US federal government procurement?
Yes. The "TA" designation indicates TAA compliance. This unit is manufactured per Trade Agreements Act requirements and is eligible for US federal contracts and GSA schedules.

Why choose K54 over G57 for my AV installation?
The K54 band (606–663 MHz) may offer cleaner spectrum in markets where the G57 band (470–616 MHz) is congested due to TV broadcast or other wireless systems. Work with your RF coordinator or use Shure's Wireless Workbench spectrum analysis to determine the best band for your specific facility.

Does the K54 band have any power restrictions?
Yes. FCC regulations limit the ADX2 output to 10 mW above 608 MHz in the K54 band, compared to up to 40 mW available in portions of the G57 band. For most commercial AV deployments within a building, 10 mW provides sufficient range.

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 information.