Shure AD2TA/K9HSB=-X55 Digital Handheld Wireless Microphone Transmitter with KSM9HS Capsule (X55: 941 to 960 MHz, Black) (TAA-Compliant)

Product Overview

The Shure AD2/KSM9HS (TAA-Compliant) in the X55 frequency band (941–960 MHz) is a professional Axient Digital handheld wireless transmitter paired with the KSM9HS premium condenser capsule, designed for commercial AV installations requiring maximum gain-before-feedback, precise polar pattern control, and upper UHF spectrum operation. The X55 band provides an RF window outside the broadcast TV range, making it a common choice for dense urban deployments where lower UHF frequencies are congested. The KSM9HS switchable hypercardioid and subcardioid polar patterns give audio engineers the ability to optimize for tight rejection or wider pickup based on room conditions. TAA compliant for U.S. federal procurement. Compatible with Shure Axient Digital X55-band receivers (AD4D, AD4Q, ADX4, ADX4D).

Product Description

The KSM9HS condenser capsule's dual Mylar diaphragm design captures vocal detail with extraordinary clarity, and its hypercardioid/subcardioid pattern switching provides two specialized pickup positions not available on the standard KSM9. In hypercardioid mode, the KSM9HS delivers maximum gain-before-feedback and tight off-axis rejection — the preferred configuration for loud commercial environments including houses of worship, auditoriums, and large meeting spaces with active monitor systems. In subcardioid mode, the capsule adopts a wider forward-facing acceptance angle that accommodates presenter movement and variable positioning in conference rooms, training facilities, and government hearing rooms. The AD2 transmitter body operating in the X55 band (941–960 MHz) brings wide tuning (up to 184 MHz), selectable 2/10/35 mW RF output, and AES-256 encryption to upper UHF wireless microphone deployments. Moisture-resistant aluminum housing, a backlit LCD for real-time system status, IR sync, and full Wireless Workbench 6 integration complete the commercial AV feature set. See also the Shure ADX2/B58 Axient Digital Transmitter for ShowLink-enabled wireless system capability.

Key Features

• KSM9HS Premium Condenser Capsule — Dual Mylar diaphragm delivers extraordinary vocal detail and frequency consistency for demanding commercial AV and broadcast applications.
• Switchable Polar Pattern (Hypercardioid / Subcardioid) — Field-adjustable between hypercardioid for maximum gain-before-feedback and off-axis rejection, or subcardioid for wider forward pickup — two specialized pattern positions distinct from the standard KSM9.
• X55 Band (941–960 MHz) — Upper UHF operation outside the broadcast TV band, frequently specified for dense urban commercial installations where lower UHF spectrum is congested.
• Axient Digital Compatible — Integrates with Shure Axient Digital X55-band receivers for enterprise-scale wireless microphone management via Wireless Workbench 6.
• AES-256 Encryption — Military-grade encryption standard on every AD2 unit, protecting audio in government, legal, and sensitive commercial AV deployments.
• High Density Mode — Maximizes simultaneous channel count per RF band for large commercial installations with multiple wireless microphone channels.
• Selectable RF Output (2/10/35 mW) — Three output levels allow AV designers to optimize for range or High Density channel capacity per the installation requirements.
• Moisture-Resistant Aluminum Housing — Durable, lightweight construction for daily commercial-grade deployment in boardrooms, auditoriums, and government facilities.
• Rechargeable Battery Support — Compatible with Shure SB900A lithium-ion battery (sold separately) for up to 9 hours with precision hour/minute metering.
• Interchangeable Capsule Design — KSM9HS capsule can be swapped for other Shure capsules (KSM8, KSM9, SM58, Beta 87A) without tools.
• TAA Compliant — Qualifies for U.S. federal government procurement under the GSA Schedule and applicable federal contract vehicles.

Typical Applications

• House of worship with high-gain-before-feedback requirement
• Auditorium and large-venue sound reinforcement
• Boardroom and executive conference room
• Government hearing room and legislative chamber
• Broadcast studio and live production
• Training room and corporate learning center
• All-hands room and town hall venue
• Multi-purpose commercial meeting space

Technical Specifications

Frequently Asked Questions

Why specify the KSM9HS over the standard KSM9 condenser capsule?
The KSM9HS provides hypercardioid and subcardioid polar patterns, whereas the KSM9 switches between supercardioid and cardioid. Hypercardioid offers tighter off-axis rejection and higher gain-before-feedback than supercardioid, making the KSM9HS the preferred choice for louder commercial environments. Subcardioid is wider than cardioid, accommodating presenters who move more freely relative to the microphone.

Why would I specify the X55 band for this installation?
The X55 band (941–960 MHz) operates above the broadcast TV band, which can offer cleaner RF operating conditions in urban commercial environments where the 470–700 MHz range is congested. Always verify X55 is available and licensed for wireless microphone use in your geographic area before purchasing.

What receivers are compatible with this X55-band transmitter?
The AD2/KSM9HS X55 requires Shure Axient Digital receivers in the X55 frequency band, including the AD4D, AD4Q, ADX4, and ADX4D. Transmitter and receiver must operate in the same frequency band for system operation.

What does TAA compliant mean for this transmitter?
TAA compliance qualifies this unit for U.S. federal government procurement under the GSA Schedule. Government agencies and contractors on federal projects can include this transmitter in compliant wireless system bids.

What are the battery and charging options?
The AD2 accepts 2x AA alkaline batteries for up to 8 hours or the Shure SB900A rechargeable (sold separately) for up to 9 hours. Shure SBC220 and SBC840 networked chargers support remote battery monitoring via Wireless Workbench 6.

What warranty is included?
Shure provides a limited 2-year manufacturer warranty. Contact Creation Networks for commercial installation support and warranty registration.