Sennheiser 509357

Overview

The Sennheiser 509357 is a digital wireless receiver designed to manage two audio channels within a compact half-rack unit. It integrates seamlessly with EW-DX transmitters and delivers network audio via built-in Dante connectivity, allowing audio signals to be routed over standard Ethernet without the need for additional converters. With a low latency of 1.9 ms and an input dynamic range of 134 dB, it ensures clear and synchronized sound for live performances, corporate events, and broadcast environments.

Key features

• Two-channel receiver that fits into half a rack, saving valuable rack space.
• Built-in Dante interface enables direct network audio transmission over Ethernet.
• Automatic frequency scanning and setup simplify operation in busy RF environments.
• Supports up to 293 compatible channels across an 88 MHz switching bandwidth for flexible frequency planning.
• Power over Ethernet (PoE) support allows a single cable to provide both power and audio, reducing cable clutter.
• Additional DC input offers power redundancy for critical installations and live setups.
• 134 dB input dynamic range eliminates the need for manual gain adjustments, allowing seamless microphone swaps.
• Low latency of 1.9 ms keeps audio tightly synchronized with on-stage action and video content.
• OLED display, jog wheel, and headphone output on the front panel provide quick and intuitive monitoring and control.
• Remote management via Sennheiser Control Cockpit and Smart Assist app extends control to laptops, tablets, and smartphones.
• AES 256 encryption secures wireless transmissions, ensuring confidentiality in sensitive environments.

Key specs

• Channels: 2 wireless channels
• Rack size: Half-rack unit
• Switching bandwidth: 88 MHz
• Maximum compatible channels: Up to 293 with EW-DX systems
• Latency: 1.9 milliseconds
• Input dynamic range: 134 dB
• Power options: Power over Ethernet (PoE) and additional DC input for redundancy
• Encryption: AES 256-bit
• Display: OLED screen
• Connectivity: Built-in Dante network audio interface

Connectivity and compatibility

This receiver is designed to integrate smoothly into professional audio networks using Dante over standard Ethernet infrastructure. Its PoE capability reduces the need for separate power supplies, while the additional DC input ensures uninterrupted operation. The unit pairs exclusively with Sennheiser EW-DX transmitters, making it a reliable choice for users already invested in this wireless ecosystem. The front panel controls and remote apps provide flexible options for monitoring and adjustments in various environments.

Ideal uses and environments

The Sennheiser 509357 receiver is well suited for corporate boardrooms, educational facilities, houses of worship, and live production settings where secure, high-quality wireless audio is essential. Its ability to handle numerous channels and automatically manage frequencies makes it a strong option for complex setups with multiple wireless devices. The low latency and wide dynamic range support clear speech and music reproduction, meeting the demands of professional presenters, performers, and AV technicians.

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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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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