Sennheiser 509669

Overview

The Sennheiser 509669 is a wireless instrument microphone set designed to give guitarists and bassists the freedom to move on stage without compromising sound quality. Built on the reliable ew 500 G4 platform, it offers a wide tuning range of up to 88 MHz and supports up to 32 simultaneous channels, ensuring clear and stable audio in demanding environments like clubs, theaters, and touring setups. The system includes a bodypack transmitter, half rack receiver, rackmount kit, and instrument cable, creating a seamless cable-free connection from instrument to mixing console.

Key features

• Wide tuning range with support for multiple compatible channels to avoid interference in crowded frequency environments
• True diversity reception technology that continuously selects the stronger antenna signal to minimize dropouts
• Quick and easy infrared sync between transmitter and receiver for fast setup and frequency matching
• Ethernet connectivity for remote control and management using Sennheiser Wireless Systems Manager software
• Adjustable RF output power (10, 30, or 50 mW) to comply with local regulations while maintaining optimal range
• Long battery life of up to eight hours on two AA batteries, supporting extended performances without interruption
• Durable metal chassis and bright OLED display provide reliable operation and clear status information on frequency, link quality, and battery
• Includes GA3 rackmount kit and Ci1 instrument cable for straightforward integration into professional setups

Key specs

• Tuning range: up to 88 MHz
• Simultaneous channels supported: up to 32
• RF output power: selectable 10, 30, or 50 mW
• Operating frequency spectrum: 470 to 558 MHz
• Receiver type: half rack with true diversity reception
• Transmitter power source: two AA batteries
• Transmitter battery life: up to 8 hours
• Display: OLED screen on receiver

Connectivity and compatibility

This wireless instrument set connects directly to guitars or basses via the included Ci1 instrument cable, eliminating the need for traditional cables on stage. The half rack receiver fits easily into standard rack setups and features an Ethernet port for networked control, making it suitable for complex live sound environments and broadcast venues. Its broad frequency range and multiple channel support ensure compatibility with other wireless systems in use.

Performance and reliability

The system’s true diversity reception housed in a robust metal chassis ensures consistent signal quality and reduces the risk of dropouts during performances. The adjustable RF power settings allow users to balance range and regulatory compliance, while the long battery life supports extended gigs without frequent battery changes. The bright OLED display provides real-time feedback on critical parameters, helping musicians and sound engineers maintain optimal performance throughout the event.

Ideal uses and environments

This wireless instrument microphone set is well suited to professional musicians performing in clubs, theaters, and large venues where mobility and sound clarity are essential. It also fits well in touring rigs and festival stages where multiple wireless systems operate simultaneously. The straightforward setup and reliable operation make it a strong choice for worship leaders, studio tracking, and any situation requiring a cable-free instrument connection with stable audio quality.

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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.

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