AtlasIED AT100D Decora Plate 70.7V 100W Volume Attenuator

The AtlasIED AT100D is built for systems integrators and AV contractors specifying volume control in 25V and 70.7V distributed audio systems. Its auto-transformer design delivers excellent frequency response and low insertion loss — qualities that matter in multi-zone paging, background music, and commercial installed sound where signal integrity across long cable runs is non-negotiable.

Designed around a Decora-style form factor, the AT100D mounts directly into standard 1-gang electrical outlet boxes, making it a clean fit for hospitality, corporate, retail, and education installs where aesthetics and code compliance both matter. The ten make-before-break attenuation steps plus a positive off position protect the switch mechanism during operation, while silver-plated contacts ensure quiet, artifact-free level changes over the life of the installation.

Compared to standard commercial series attenuators, the AT100D offers a more refined wall-plate presentation with included white and ivory plastic plates and matching skirted knobs. The removable terminal block simplifies field wiring and reduces installation time — a meaningful advantage when commissioning multiple zones across a large venue or facility.