Shure ADX2FD/K8N Digital Handheld Wireless Microphone Transmitter with KSM8 Capsule (Nickel)

Product Overview

The Shure ADX2FD/K8N is a frequency diversity handheld wireless microphone transmitter for the Axient Digital system, equipped with the KSM8 dual-diaphragm cardioid dynamic capsule in a nickel finish. Frequency diversity means the transmitter simultaneously broadcasts on two independent RF carriers, providing the highest level of dropout protection available in the Axient Digital product line—making it the preferred choice for mission-critical commercial AV deployments, high-profile broadcast events, and government or corporate environments where a single dropped signal is unacceptable. It is compatible with Axient Digital receivers including the Shure AD4Q-DC Four-Channel Wireless Receiver.

Product Description

Where the standard ADX2 transmits on one RF carrier, the ADX2FD simultaneously transmits on two independent RF frequencies. The receiver selects the stronger of the two signals in real time, effectively eliminating multipath dropout—the single most common cause of wireless audio failure in challenging RF environments. This makes the ADX2FD/K8N the appropriate specification for high-value productions, house of worship installations with complex room geometry, auditoriums with significant audience RF interference, and broadcast environments where retakes are not an option. The KSM8 capsule delivers a natural, dynamic vocal character suited to live speech reinforcement and musical performance. ShowLink remote control allows AV system operators to adjust transmitter gain, mute, and power settings over the air from the mix position via Wireless Workbench 6. The SB920A rechargeable battery provides up to 6.5 hours runtime in dual-carrier frequency diversity mode, or up to 9 hours in single-carrier operation.

Key Features

• Frequency Diversity Transmission — Simultaneously transmits on two independent RF carriers, with the receiver selecting the stronger signal in real time to eliminate multipath dropout in demanding commercial AV environments.
• KSM8 Dual-Diaphragm Cardioid Dynamic Capsule — Provides natural vocal reproduction with high SPL handling and controlled rear rejection, suited to live sound, broadcast, and corporate speech reinforcement.
• ShowLink Remote Control — Enables real-time over-the-air parameter adjustments from the operator position without physical access to the transmitter, critical for talent-worn applications.
• Wide 184 MHz Tuning Bandwidth — Broad frequency agility within the purchased band allows technicians to navigate congested UHF spectrum in urban venues and multi-system deployments.
• Selectable RF Output Power — 2/10/40 mW power settings allow optimization of RF range versus battery life based on venue size and RF conditions.
• SB920A Rechargeable Li-Ion Battery — Up to 6.5 hours runtime in dual-carrier frequency diversity mode; up to 9 hours in single-carrier mode. Networked battery monitoring via Wireless Workbench 6.
• Nickel Finish — Professional nickel body provides a premium aesthetic suited to broadcast, government, and high-profile corporate AV environments.
• Axient Digital Ecosystem Compatibility — Works with all Shure AD4 and ADX4 series receivers, supporting High Density mode and full Wireless Workbench 6 system management.

Typical Applications

• Boardroom
• House of worship
• Government space
• All-hands room
• Multi-purpose room
• Broadcast studio
• Auditorium

Technical Specifications

Frequently Asked Questions

What is the difference between the ADX2FD and the ADX2?
The ADX2FD (Frequency Diversity) simultaneously transmits on two independent RF carriers, giving the receiver two separate signals to choose from in real time. This eliminates the multipath nulls that cause dropouts with single-carrier transmitters. The standard ADX2 transmits on one carrier and is suited to most professional applications; the ADX2FD is the appropriate choice for mission-critical events where even a brief dropout is unacceptable.

Which receivers are compatible with the ADX2FD/K8N?
The ADX2FD/K8N works with all Shure Axient Digital AD4 and ADX4 series receivers. The G57 band (470–616 MHz) must match the receiver band purchased. Frequency diversity requires a compatible receiver that supports dual-carrier operation.

What is the battery life in frequency diversity mode?
In full frequency diversity (dual-carrier) mode using the SB920A rechargeable lithium-ion battery, runtime is up to 6.5 hours. Running in single-carrier mode extends runtime to up to 9 hours. The current battery charge level is visible via Wireless Workbench 6 when used with a compatible Axient Digital receiver.

Is the ADX2FD/K8N suitable for government or secure meeting environments?
Yes. The Axient Digital system supports 256-bit AES encryption at the receiver level, securing wireless audio transmissions for classified or sensitive meeting environments. Consult Creation Networks for system design and compliance guidance.

What warranty applies to the ADX2FD/K8N?
Shure provides a two-year limited warranty. Contact Creation Networks for pre-sale system design assistance and post-purchase technical support.