AtlasIED AT35D Decora Plate 70.7V Auto Transformer Attenuator

The AtlasIED AT35D is designed for AV integrators and systems contractors specifying volume control in commercial installed audio environments. Its auto transformer topology supports both 25V and 70.7V distributed speaker systems, making it a practical fit for retail, hospitality, house of worship, corporate, and educational installations where reliable zone-level attenuation is required at the wall plate.

The Decora-style form factor mounts directly into standard 1-gang electrical outlet boxes, allowing seamless integration alongside other low-voltage devices in professional installations. The ten-step make-before-break switching design prevents signal interruption during adjustment, while a positive off position with no dead stop between maximum and off protects the switch mechanism from damage over the long service life typical of installed systems.

Silver-plated contacts ensure consistent, noise-free operation across the full 27dB attenuation range. A removable terminal block simplifies field wiring, and the package includes both white and ivory plastic plates with matching skirted knobs so the installer can match existing décor without ordering separate hardware. The AT35D is UL safety listed and backed by a five-year warranty, meeting the longevity expectations of permanent installed audio projects.