AtlasIED SM191 Series Surface Mount Square Speaker Enclosure | 4"

The AtlasIED SM191 Series surface mount square speaker enclosures are engineered for commercial AV integrators and professional sound installers who need reliable, acoustically optimized backboxes for 8" speaker baffles in ceiling or wall applications. The increased internal volume of these enclosures improves acoustic loading, extending bass response and delivering fuller, more natural sound reproduction in installed audio environments such as retail spaces, houses of worship, corporate facilities, and hospitality venues.

Constructed from heavy-gauge cold-rolled steel, these enclosures resist the resonance and mechanical noise that can compromise intelligibility in critical listening environments. The interior acoustic fiberglass lining damps metallic resonance across the frequency spectrum, while the textured white epoxy surface finish ensures a clean, professional appearance in finished interior spaces. Combination conduit knockouts simplify rough-in wiring for professional installations, and the enclosure's design accommodates a variety of Atlas Sound square speaker baffles, making it a flexible platform across multi-room or large-scale distributed audio projects.

Where budget enclosures compromise low-frequency performance, the SM191 Series delivers measurable acoustic improvement without requiring custom millwork or specialty subassemblies — a cost-effective solution for integrators specifying 70V distributed audio systems at scale.