Atlas Sound SM191-78-8 – 8" Deep Square Surface Mount Speaker Enclosure

Product Overview

The Atlas Sound SM191-78-8 is a deluxe square surface mount speaker enclosure with an 8" mounting depth, designed to extend the low-frequency performance of 8" commercial and professional loudspeakers. The increased internal volume improves acoustic loading, which extends bass response compared to standard-depth enclosures—making it the correct choice for applications where audio quality and fuller sound reproduction are priorities. It accepts a variety of Atlas Sound square baffles and is BAA (Buy American Act) compliant.

Product Description

The SM191-78-8 is constructed from heavy-gauge cold rolled steel with inner surfaces undercoated to prevent metallic resonance, particularly in the upper frequency range where thin metal panels can introduce coloration. The backbox interior is lined with 1.5" (38 mm) thick high-density fiberglass at 1.5 lbs. per cubic foot, which absorbs internal reflections and improves the acoustic environment for the speaker driver. The result is a fuller, more extended bass response from the speaker system compared to an unlined or standard-depth enclosure. The textured white exterior finish is appropriate for surface mounting on walls or ceilings in commercial environments where the enclosure is visible. The 12.75" exterior height and 8" depth provide the internal volume necessary for 8" driver acoustic loading. The SM191-78-8 accepts Atlas Sound's square baffle series, providing installation flexibility across different driver mounting configurations. This enclosure is appropriate for conference rooms, classrooms, retail spaces, and any installation requiring wall or surface-mounted speakers with enhanced low-end performance.

Key Features

• 8" Internal Depth — Increased volume extends low-frequency acoustic loading compared to standard-depth enclosures.
• Fiberglass Lining — 1.5" high-density fiberglass absorbs internal reflections for cleaner bass response.
• Undercoated Interior — Prevents metallic resonance in the upper frequency range.
• Heavy-Gauge Cold Rolled Steel — Rigid construction reduces panel resonance and extends service life.
• Textured White Finish — Appropriate for visible surface-mount installations in commercial spaces.
• Square Baffle Compatible — Accepts a variety of Atlas Sound square mounting baffles.
• BAA Compliant — Meets Buy American Act requirements for government and institutional projects.

Technical Specifications