Sennheiser 509328

Overview

The Sennheiser 509328 is a dual-channel digital wireless system designed to seamlessly switch between a lavalier and a handheld microphone without the need to change receivers or frequencies. It features a receiver capable of handling two signals simultaneously, paired with a bodypack transmitter and the MKE 2 omnidirectional lavalier microphone, as well as a handheld transmitter equipped with the dynamic cardioid MMD 835 capsule. With up to 12 hours of battery life and a wide 134 dB dynamic range, this system supports clear audio for both soft speech and powerful vocals, making it suitable for a variety of professional audio environments.

Key features

• Dual-channel receiver with an easy-to-read OLED display for clear monitoring of both microphones
• Bodypack transmitter combined with the trusted MKE 2 omnidirectional lavalier microphone for discreet and reliable audio capture
• Handheld transmitter featuring the dynamic cardioid MMD 835 capsule, ideal for vocal clarity and feedback rejection
• Up to 12 hours of continuous operation on rechargeable lithium-ion batteries, with in-device charging to minimize downtime
• Bluetooth control via the Sennheiser Smart Assist app simplifies frequency selection, gain adjustment, and system monitoring
• Equidistant channel spacing allows deployment of up to 134 microphones simultaneously without intermodulation interference
• 88 MHz switching bandwidth provides flexibility in crowded RF environments, ensuring stable connections
• Durable all-metal housing protects components from physical damage during touring, corporate events, or stage use
• Wide 134 dB dynamic range on each transmitter accommodates a broad range of vocal dynamics from quiet speech to loud singing

Key specs

• Channels: dual-channel receiver supporting two simultaneous signals
• Microphones: MKE 2 omnidirectional lavalier and MMD 835 dynamic cardioid handheld capsule
• Battery life: up to 12 hours per transmitter on rechargeable lithium-ion batteries
• Frequency bandwidth: 88 MHz switching bandwidth for flexible frequency planning
• Dynamic range: 134 dB per transmitter
• Display: OLED screen on receiver for clear status and settings
• Charging: in-device charging without removing batteries
• Housing: rugged all-metal construction

Connectivity and compatibility

The system’s receiver is designed to fit neatly into standard rack setups, making it easy to integrate into existing audio infrastructures. Bluetooth connectivity enables wireless control and monitoring through the Smart Assist app, which is compatible with common mobile devices. The system’s wide frequency range and equidistant channel spacing ensure compatibility with a large number of wireless microphones in the same venue, reducing interference and simplifying frequency management.

Ideal uses and environments

This wireless system is well suited to environments where flexibility and reliability are essential, such as classrooms, boardrooms, houses of worship, and small to medium live stages. Its ability to switch between lavalier and handheld microphones without changing receivers makes it a strong choice for presenters, educators, performers, and corporate users who need clear, uninterrupted audio during events or productions. The durable metal housing and long battery life also support demanding touring and rental applications.

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.

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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.

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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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