Sennheiser 509742

Overview

The Sennheiser 509742 is a wireless dynamic microphone system designed for performers who need reliable and clear vocal sound in various live settings. It features the MMD 945-1 supercardioid capsule for focused vocal pickup and offers up to 42 MHz of selectable bandwidth in the UHF range. This system supports up to 20 compatible channels and can link 12 systems simultaneously, making it suitable for large venues and complex setups.

The handheld transmitter is built with a lightweight aluminum body that balances comfort and durability, ideal for frequent use and travel. With a transmission range of up to 100 meters, it allows freedom of movement on stage or in conference halls without signal loss. Setup is streamlined through an infrared synchronization between the transmitter and the true diversity half-rack receiver, which provides real-time monitoring of frequency, signal strength, audio level, and battery status.

Key features

• Supercardioid dynamic capsule that delivers focused and feedback-resistant vocal pickup for clear sound in live environments
• Selectable bandwidth of up to 42 MHz, allowing flexible channel selection to avoid interference
• Reliable transmission range of up to 100 meters, supporting movement across large stages or venues
• Lightweight aluminum transmitter body designed for comfort during extended use and durability for frequent transport
• One-touch infrared synchronization simplifies pairing between transmitter and receiver, speeding up setup
• Support for up to 20 compatible channels and 12 linked systems, enabling complex multi-microphone configurations without interference
• True diversity half-rack receiver with an LCD display that shows frequency, RF strength, audio level, and battery status for easy monitoring during performances

Key specs

• Microphone capsule: MMD 945-1 supercardioid dynamic
• Bandwidth: up to 42 MHz selectable in UHF range
• Operating range: up to 100 meters
• Channels supported: up to 20 compatible channels
• Linked systems supported: up to 12 simultaneously
• Transmitter body: lightweight aluminum
• Receiver type: true diversity half-rack with LCD display

Connectivity and compatibility

The system is designed to integrate smoothly into professional audio setups, with the receiver providing standard audio outputs compatible with mixers, amplifiers, and PA systems. Its wide channel selection and interference-resistant design make it a strong choice for venues that require multiple wireless microphones operating simultaneously.

Ideal uses and environments

This microphone system fits well in live music performances, corporate presentations, houses of worship, and school productions. Its robust build and reliable wireless range make it suitable for touring musicians and event professionals who need consistent sound quality and easy setup in diverse environments. The system’s ability to handle multiple linked units without interference is especially valuable for larger productions and multi-speaker 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, and include all tags, manuals, accessories, and original, unaltered packaging. To start a return, please email us for approval. Items sent back without approval may be refused or returned to the sender. If any item is kept, its value will be deducted from the refund.

Non-returnable items include opened TVs, combos, or monitors 37″ or larger, 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. Please allow 5–7 business days for the credit to post. Shipping and handling are nonrefundable. If an item is used, incomplete, or not in its original condition, a 30% restocking fee may apply. Direct exchanges are not offered. To exchange an item, please purchase the replacement separately and return the original for a refund.

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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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