Shure ADX2TA/K9B=-G57 Digital Handheld Wireless Microphone Transmitter with KSM9 Capsule (G57: 470 to 616 MHz, Black) (TAA-Compliant)

Product Overview

The Shure ADX2TA/K9B is a TAA-compliant Axient Digital handheld wireless transmitter equipped with the KSM9 switchable-pattern condenser capsule in a black finish. Designed for US federal government procurement and professional commercial AV installation, it operates in the G57 band (470–616 MHz) and pairs with any Axient Digital receiver for a complete enterprise wireless microphone system. This transmitter is well-suited for presenters, conference rooms, government spaces, and broadcast studios where audio quality and RF reliability are critical requirements.

Product Description

Built on the Axient Digital platform, the ADX2TA/K9B provides 184 MHz of tuning range within the G57 band for maximum frequency coordination flexibility in dense urban RF environments. The KSM9 condenser capsule supports switchable cardioid and supercardioid polar patterns, allowing AV integrators to adapt pickup behavior for different room sizes, stage configurations, and feedback margins without changing the transmitter body. ShowLink remote control operates over IEEE 802.15.4 at 2.4 GHz, enabling real-time parameter management from Wireless Workbench without interrupting a live program. AES 256-bit encryption makes this transmitter appropriate for government facilities, legal proceedings, and any application requiring secure audio transmission.

High Density mode reduces channel spacing to 125 kHz, enabling significantly more simultaneous wireless channels in a given spectrum — essential for multi-room government campuses or large conference centers. For a comparable TAA transmitter with a high-sensitivity condenser capsule, see the Shure ADX2/K9HSB. For a dynamic capsule alternative, see the Shure ADX2/B58.

Key Features

• TAA Compliance — Meets Trade Agreements Act requirements for US federal government and GSA schedule procurement without requiring exceptions or waivers.
• KSM9 Switchable-Pattern Condenser Capsule — Cardioid and supercardioid patterns in one capsule provide configuration flexibility for different acoustic environments and feedback rejection requirements.
• G57 Frequency Band (470–616 MHz) — 184 MHz tuning range supports comprehensive frequency coordination across complex multi-system deployments.
• ShowLink Remote Control — IEEE 802.15.4 wireless management link allows real-time parameter adjustments from the operator position without access to the microphone.
• AES 256-Bit Encryption — Built-in encryption supports secure audio transmission in government, legal, and classified-adjacent environments.
• High Density Mode — 125 kHz channel spacing (vs. 350 kHz Standard) dramatically increases simultaneous channel capacity for large commercial deployments.
• Selectable RF Power (2/10/40 mW) — Transmit power selection optimizes the balance between operating range and battery runtime for each specific installation.
• SB920 Rechargeable Li-Ion Battery — Up to 9 hours runtime at 10 mW with precision fuel-gauge metering and docked charging compatibility.
• Cast Aluminum Body — Durable, lightweight construction handles the demands of frequent use in live events, government meetings, and commercial AV environments.
• Interchangeable Cartridge System — Compatible with the full range of Shure wireless capsules for future reconfiguration flexibility.

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=-G57?
This transmitter requires an Axient Digital receiver in the G57 band, such as the ADX4 or ADX4D. Frequency band must match between transmitter and receiver for the system to function correctly.

Is this transmitter eligible for US government procurement through GSA schedules?
Yes. The "TA" designation in the SKU indicates TAA compliance. This transmitter is manufactured per Trade Agreements Act requirements and is eligible for US federal contracts and GSA schedule purchases.

What is the difference between cardioid and supercardioid modes on the KSM9 capsule?
Cardioid mode provides a broad forward pickup pattern suitable for most conference and presentation applications. Supercardioid mode narrows the pickup angle and increases rear rejection, which improves feedback margin when floor monitors or nearby speakers are present.

Can I use this transmitter in a system with non-TAA Axient Digital components?
Yes. TAA-compliant ADX2TA transmitters are functionally identical to their non-TAA counterparts and are fully compatible with all Axient Digital receivers, chargers, and accessories in the same frequency band.

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