Sennheiser 509623

Overview

The Sennheiser 509623 is a stereo bodypack receiver designed for in-ear monitoring during live performances and rehearsals. It operates within a frequency range of 558 to 608 MHz and offers up to 1680 selectable frequencies across a 42 MHz bandwidth, ensuring clear and reliable audio even in crowded wireless environments. With a transmission range of up to 100 meters and adaptive diversity technology, it provides stable signal reception and freedom of movement for musicians, sound engineers, and performers.

The receiver comes with Sennheiser’s IE 4 earphones, delivering detailed sound through a standard 3.5mm output to help isolate external noise and keep you focused on your performance. Its rugged metal housing and backlit, menu-driven display make it durable and easy to operate in various live settings. Powered by two AA batteries or a rechargeable pack, it supports up to six hours of continuous use, covering most gigs and practice sessions without interruption.

Key features

• Adaptive diversity system automatically selects the best antenna signal to reduce dropouts and interference
• Menu-driven backlit display allows quick and easy navigation of settings, even in low-light conditions
• Rugged metal housing protects the receiver from the demands of touring and live use
• Includes IE 4 earphones with a 3.5mm output for clear and detailed in-ear monitoring
• Supports up to 1680 selectable frequencies within a 42 MHz bandwidth for flexible channel selection
• Transmission range of up to 100 meters provides freedom of movement on stage
• Powered by two AA batteries or a rechargeable pack, offering up to six hours of continuous operation

Key specs

• Frequency range: 558 to 608 MHz
• Selectable frequencies: up to 1680 within 42 MHz bandwidth
• Compatible channels: 16
• Transmission range: up to 100 meters
• Power source: two AA batteries or rechargeable pack
• Operating time: up to 6 hours
• Earphone output: standard 3.5mm jack
• Housing: rugged metal

Connectivity and compatibility

The receiver’s standard 3.5mm output allows easy connection to the included IE 4 earphones or other compatible in-ear monitors. Its wide frequency range and multiple selectable channels make it adaptable to various wireless setups, fitting well into professional audio environments where interference and crowded frequencies are common challenges.

Ideal uses and environments

This bodypack receiver is well suited to live music performances, rehearsals, and professional audio monitoring where reliable wireless sound is essential. It works effectively for solo artists, bands, and sound engineers who require stable, clear audio and the freedom to move around the stage without signal loss. Its durable design and user-friendly controls also make it a strong choice for touring musicians and live event professionals.

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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.

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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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