SL22

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The Drawmer SL22 Sound Level Limiter provides precise, transparent control over audio levels to protect hearing, safeguard sound systems, and help venues comply with noise regulati ons. Designed for clubs, theatres, schools, broadcast facilities, and other professional environments, it maintains consistent output levels without compromising audio quality. Unlike conventional protection systems that interrupt playback or disconnect speakers, the SL22 limits excessive levels smoothly, preventing unauthorised volume increases while preserving the listening experience. A dedicated limited headphone output also protects regular headphone users, making it equally valuable for DJs, sound engineers, and educational facilities. Built with both installers and venue operators in mind, the SL22 combines secure operation with straightforward setup. Hidden calibration controls sit behind a lockable security plate with tamper-evident sealing, ensuring protection settings remain secure after installation. External control connections allow remote dimming or muting for fire alarms and other safety systems, while alert and protection outputs support remote monitoring and data logging. Comprehensive LED status indicators, optional tamperproof XLR locking, and time delay output relays further enhance reliability, making the SL22 a dependable solution for protecting equipment, controlling sound levels, and maintaining regulatory compliance. Designed and handmade by Drawmer in the United Kingdom. Show more