Symetrix 571 SPL Computer Noise Sensing Auto Sound Leveling Controller ** NIB - $55 - (Sykesville, MD)

Brand new never used Symetrix unit with original box and instructions. Box has been opened to shown contents. The Symetrix 571 SPL Computer is an automatic level controller that maximizes intelligibility by changing gain in proportion to environmental noise level changes. In essence, controlling the volume of the sound system by measuring the volume of the ambient noise and then adjusting the system gain accordingly. The operating characteristics of the SPL computer are controlled by a powerful microprocessor, running under Symetrix proprietary software. This reduces the 571’s calibration time and allows the installer to optimize performance for any situation. No test gear is needed because the 571 obtains and stores the information it needs during calibration.

Posted in Sykesville, MD, Music Instruments
From ebay.com - 1 month ago