Lowell 50LVC 50W Mono Autoformer Attenuator Volume Control with Rotary Switch, Stainless Steel

For installers and system integrators who need reliable, professional volume control for paging, background music and security audio, the Lowell Manufacturing 50LVC 50W Mono Autoformer Attenuator delivers precise, repeatable level management. This audio controller is built for 25V/70V/100V speaker lines and handles up to 50 watts, giving you predictable performance across public address, surveillance and monitoring environments. The stepped rotary switch offers 3 dB per step (33 dB total) for tamper-resistant, easy-to-set attenuation while maintaining audio clarity. Installation is straightforward: Phoenix-style plug-in screw termination strips accommodate pre-wiring and 14-gauge wire, and the stainless-steel one-gang wall plate mounts in a standard E.O. box to provide a clean, commercial finish. ETL-listed for safety and assembled in the U.S.A., the 50LVC is ideal for security, surveillance, retail, education, and corporate AV applications where dependable level control matters. Add the Lowell 50LVC to your next project to simplify system tuning and improve announcement intelligibility—order now or contact your Lowell rep for technical support and integration advice.

• Delivers reliable, repeatable volume control for single or multiple 25/70/100V speaker lines, improving intelligibility in paging, PA and security audio systems.
• 50W autoformer design provides clean attenuation with minimal distortion so announcements and background music remain clear at any level.
• 3 dB stepped rotary attenuation (33 dB total) gives predictable, tamper-resistant level changes for consistent system tuning and monitoring.
• Phoenix-style plug-in screw terminals and 14 AWG capacity speed installation and pre-wiring, reducing install time and labor costs.
• Durable stainless-steel one-gang wall plate with labeled rotary knob fits standard gang boxes and blends into commercial and security environments.
• ETL listed and assembled in the USA with global components, ensuring code compliance and long-term reliability for surveillance and monitoring installations.