Shure AD2/K8B=-G57

Overview

The Shure AD2/K8B=-G57 is a handheld digital wireless microphone transmitter designed to deliver clear and reliable audio for live performances and professional sound applications. It features the KSM8 dynamic cardioid capsule with a dual-diaphragm design that reduces proximity effect and feedback, ensuring vocals sound natural and crisp. Operating within the 470 to 616 MHz UHF range, it supports a line-of-sight transmission distance of up to 330 feet, providing freedom of movement without compromising signal quality.

Key features

• KSM8 dual-diaphragm dynamic cardioid capsule minimizes unwanted noise and enhances vocal clarity for natural sound reproduction.
• Selectable RF output power levels (2, 10, or 35 milliwatts) allow adjustment of signal strength to suit different environments and reduce interference.
• Backlit LCD screen offers easy access to settings, including infrared sync for quick frequency matching and automatic gain adjustment to maintain consistent audio levels.
• AES 256-bit encryption secures wireless audio transmission, protecting against interference and unauthorized access.
• Runs on standard AA batteries for up to 8 hours or Shure SB900A rechargeable batteries for up to 9 hours, supporting extended use during events or rehearsals.
• Interchangeable capsule compatibility provides flexibility for users to customize their microphone setup with other Shure capsules.

Key specs

• Frequency range: 470 to 616 MHz UHF
• Wireless range: up to 330 feet line-of-sight
• RF output power: selectable 2, 10, or 35 milliwatts
• Battery life: 8 hours with AA batteries, 9 hours with SB900A rechargeable battery
• Encryption: AES 256-bit
• Capsule type: KSM8 dynamic cardioid dual-diaphragm

Connectivity and compatibility

This transmitter integrates seamlessly with Shure wireless systems operating in the 470 to 616 MHz range, making it suitable for professional audio setups in venues, studios, and live events. Its compatibility with interchangeable capsules from other Shure models allows sound engineers and performers to tailor the microphone’s response to specific vocal styles or environments.

Performance and reliability

Designed for demanding live sound environments, the transmitter’s robust wireless performance ensures stable connections even in crowded RF spaces. The adjustable RF power helps optimize signal strength while minimizing interference. The dual-diaphragm capsule reduces proximity effect, delivering consistent vocal tone whether the microphone is held close or at a distance. Long battery life supports extended sessions without interruption.

Ideal uses and environments

This microphone transmitter is well suited to vocalists, presenters, and sound professionals who require dependable wireless audio with clear vocal reproduction. It works well in concert venues, conference rooms, houses of worship, and broadcast settings where secure, interference-free transmission and ease of use are critical. Its flexible power options and capsule interchangeability make it a strong choice for users who need adaptability across different performance scenarios.

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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