Galaxy Audio CSL4-HHHHM 4-Channel Digital UHF Wireless Microphone System - Frequency CODE M3 516-558MHz

Managing multiple wireless microphones on a crowded stage should feel effortless—not like fighting for clean frequencies all night. The Galaxy Audio CSL4-HHHHM 4-channel digital UHF wireless microphone system is built for demanding live environments where reliability, speed and clear vocal performance matter most. Combining four independent digital UHF True-Diversity receivers into a single 1U rackmount chassis, the system includes four HH48 handheld dynamic cardioid microphone transmitters, antennas, power supply, combined-output cable and quick-start guide for a complete multi-channel wireless solution right out of the box. Features like auto frequency scanning, RF spectrum analysis, IR sync, customizable LCD displays and onboard 7-band EQ per channel help streamline setup while maintaining stable, professional wireless performance for worship teams, theater productions, mobile DJs, conference spaces and live performance venues.

Four Channels of Digital Wireless Performance

The CSL4 receiver packs four fully independent digital True-Diversity wireless channels into a compact single-rack-space design, making it ideal for multi-performer applications where rack efficiency and dependable RF performance are critical. Operating in the M3 frequency range (516–558MHz), the system offers access to hundreds of selectable frequencies with support for multiple simultaneous wireless systems depending on the operating band. Auto frequency scanning and the built-in RF spectrum analyzer simplify frequency coordination in crowded wireless environments, while IR Sync allows transmitters to pair instantly with their assigned channels. With less than 3 ms latency, 32-bit encrypted digital transmission and up to 300' of operating range, the system delivers clear, secure audio with dependable real-world stability.

HH48 Handheld Transmitters With Professional Vocal Clarity

The included HH48 handheld transmitters are designed to capture vocals with focused clarity and strong feedback rejection thanks to their dynamic cardioid microphone capsules. LCD displays on each transmitter provide quick access to frequency, battery life and mute status, helping performers and engineers stay informed during live use. PLL phase-locked operation and digital modulation maintain consistent wireless performance, while approximately eight hours of battery life on two AA batteries keeps the system ready for long rehearsals, services and performances. The combination of clean vocal pickup and stable RF transmission makes the HH48 microphones equally suited for spoken word, live vocals and presentation applications.

Flexible Connectivity and Expandable Wireless Operation

The CSL4 receiver provides balanced XLR outputs for each individual channel along with a summed unbalanced 1/4" output for simplified connection options in smaller setups. Integrated 7-band EQ processing per channel allows quick tonal adjustments directly from the receiver, while customizable LCD display colors help users visually identify channels during fast-paced events. The system can also be expanded with compatible accessories including bodypack transmitters, lavalier microphones, headset microphones, antenna distribution systems and directional antenna options for larger installations. Compact, professional and designed for busy stages, the CSL4-HHHHM system delivers a complete four-channel wireless solution with the flexibility needed for modern live sound environments.