Shure ADX2FD/K9HSB Digital Handheld Wireless Microphone Transmitter with KSM9HS Capsule (Black)

Product Overview

The Shure ADX2FD/K9HSB is a frequency-diverse digital handheld wireless microphone transmitter featuring the KSM9HS condenser capsule in a black finish, designed for broadcast production, theatrical performances, and commercial AV installations where tight polar control and maximum off-axis rejection are required. The KSM9HS offers supercardioid and hypercardioid pattern options, making it well-suited for high-stage-monitor environments, broadcast studios, and large-venue productions where precise audio capture and feedback resistance are priorities. Frequency-diverse transmission and ShowLink remote control place it among the most RF-reliable handheld solutions in the Axient Digital portfolio.

Product Description

The ADX2FD/K9HSB pairs the KSM9HS condenser capsule—with its switchable supercardioid and hypercardioid polar patterns—with Axient Digital frequency-diverse RF technology. The tighter polar patterns of the KSM9HS provide greater rejection of off-axis sound sources and on-stage monitors compared to cardioid designs, a significant advantage in high-SPL live productions, broadcast environments, and government assembly chambers. Frequency diversity transmits on two independent RF paths simultaneously for automatic interference avoidance, while HD mode maximizes simultaneous channel count in spectrum-constrained installations. ShowLink enables remote transmitter management via Wireless Workbench 6 or ShurePlus Channels without interrupting a live production. Available in G57 band (470–616 MHz) in black finish. Pair with the Shure AD4DNP Two-Channel Receiver or Shure AD4QUS Four-Channel Receiver.

Key Features

• Frequency-Diverse Transmission — Simultaneous dual-frequency transmission provides automatic RF interference avoidance without engineer intervention during critical productions.
• KSM9HS Condenser Capsule – Supercardioid/Hypercardioid — Switchable polar patterns offer tight off-axis rejection for high-monitor-level live productions and broadcast environments.
• ShowLink Remote Control — Remote transmitter management via Wireless Workbench 6 or ShurePlus Channels during live commercial productions and broadcast.
• Standard and High Density Modes — HD mode enables higher simultaneous channel counts in large-scale commercial and broadcast deployments.
• Black Finish — Professional black finish for broadcast studios and stage environments.
• Wide Tuning Range — Broad frequency agility in the G57 band for effective coordination in RF-dense commercial venues.
• Axient Digital Compatibility — Works with all Axient Digital AD4D and AD4Q receivers in existing wireless infrastructure.

Typical Applications

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

Technical Specifications

Frequently Asked Questions

How does the KSM9HS differ from the standard KSM9 capsule?
The KSM9HS offers supercardioid and hypercardioid polar pattern options, providing tighter off-axis rejection than the standard KSM9’s cardioid/supercardioid options. This makes the K9HSB better suited for high-monitor-level stage environments and broadcast studios where maximum feedback rejection and off-axis isolation are required.

Is the ADX2FD/K9HSB compatible with existing Axient Digital receivers?
Yes. It works with all Axient Digital AD4D and AD4Q receivers in both Standard and High Density operating modes.

Can the KSM9HS polar pattern be switched while deployed?
Yes. The KSM9HS supports switchable polar patterns on the capsule itself, allowing on-site adjustment based on the specific stage or room environment without changing the transmitter hardware.