Shure AD2/K9B=-G57

Overview

The Shure AD2/K9B=-G57 is a digital handheld wireless microphone transmitter designed for the Axient Digital wireless system, delivering professional-grade vocal performance. It features the renowned KSM9 dual-diaphragm condenser capsule, which provides clear and natural sound reproduction. With a transmission range of up to 330 feet and battery life lasting up to 9 hours using the Shure SB900A rechargeable battery, this transmitter offers reliable operation for extended live performances and rehearsals.

Key features

• Dual-diaphragm KSM9 condenser capsule that captures vocals with clarity and natural tone
• Switchable cardioid and supercardioid polar patterns to adapt to different stage and venue acoustics
• Operates within a 146 MHz UHF bandwidth, providing stable and interference-resistant wireless transmission
• Transmission range up to 330 feet, allowing performers freedom of movement without signal loss
• Secure AES 256-bit encryption ensures your audio signal remains protected from interception
• Selectable RF output power levels (2, 10, and 35 mW) to optimize performance in various environments
• Infrared sync feature enables quick and straightforward frequency coordination and setup
• Durable aluminum housing resists moisture and withstands the rigors of live event use

Key specs

• Microphone capsule: KSM9 dual-diaphragm condenser
• Polar patterns: Cardioid and supercardioid, switchable
• Frequency bandwidth: 146 MHz UHF
• Transmission range: Up to 330 feet (100 meters)
• Encryption: AES 256-bit
• Battery life: Up to 8 hours with standard AA batteries, up to 9 hours with Shure SB900A rechargeable battery
• RF output power: Selectable 2 mW, 10 mW, and 35 mW
• Body material: Lightweight aluminum with moisture resistance

Connectivity and compatibility

This transmitter integrates seamlessly with the Axient Digital wireless system, ensuring compatibility with Shure’s professional receivers and networked audio setups. Its infrared sync simplifies pairing with receivers, reducing setup time and minimizing interference risks. The adjustable RF output power allows it to perform well in both small venues and large stages, making it a flexible choice for various live sound environments.

Performance and reliability

Built to withstand the demands of live performances, the transmitter’s aluminum body offers durability and moisture resistance, protecting it from environmental challenges. The KSM9 capsule delivers vocal clarity that suits both spoken word and singing, while the secure AES 256-bit encryption maintains audio integrity in crowded RF environments. Long battery life supports extended use without frequent changes, making it dependable for concerts, theater, and broadcast applications.

Ideal uses and environments

This wireless microphone transmitter is well suited for professional vocalists, sound engineers, and performers who require high-quality audio and reliable wireless operation. It fits well in concert halls, theaters, houses of worship, and broadcast studios where clear vocal reproduction and secure transmission are essential. Its adaptable polar patterns and adjustable power output make it a strong choice for both intimate venues and large-scale events.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, with tags, manuals, accessories, and original, unaltered packaging. Any item kept will be deducted from the refund. Start a return by sending us an email. Items sent back without approval may be refused or returned to the sender.

Some items are not returnable: opened TVs/combos/monitors 37″+, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method; allow 5–7 business days for the credit to post. Shipping, handling, customs duties, and import taxes are nonrefundable. If an item is used, incomplete, or not in original condition, a 30% restocking fee may apply. Direct exchanges are not offered; purchase the replacement and return the original for a refund.

We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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