**PACK OF 12** SD72 Speaker

Ideal Use Cases

This listing packages twelve Atlas Sound speakers for projects that require multiple matching ceiling locations. The supplied product record identifies the individual speaker as the SD72W, while the listing title uses SD72. The source URL describes the product as an 8-inch dual-cone in-ceiling loudspeaker. This combination makes the package relevant when a system design calls for twelve speakers from this model family rather than a single unit. Because room-size guidance, coverage angles, environmental ratings, and recommended applications are not provided, the final speaker quantity and placement should follow the requirements of the planned installation.

Why Choose This Model

The available product data provides two concrete audio specifications: sensitivity is listed at 97 dB, and frequency response is listed as 55 Hz. These figures give system designers specific reference points when evaluating the SD72W against the requirements of an existing plan. The source does not include sensitivity measurement conditions or a complete frequency-response range, so the values should be interpreted exactly as published rather than expanded into unsupported performance claims. The pack quantity is clearly stated as twelve, allowing buyers to evaluate the package against a known speaker count before ordering.

Installation and Integration

The in-ceiling designation establishes the intended installation format, while the source URL identifies an 8-inch dual-cone loudspeaker design. No ceiling cutout dimensions, mounting depth, enclosure requirements, grille details, wiring connections, impedance, transformer taps, or mounting accessories are specified in the supplied information. Those details should be confirmed against the project documentation before installation. The record also does not identify included hardware, cable, back cans, tile bridges, or other installation components. Buyers integrating the SD72W into an existing audio system should verify electrical compatibility and required accessories separately, especially when replacing another ceiling-speaker model.

Performance Highlights

Sensitivity is listed at 97 dB, providing the only supplied sensitivity figure for this model. Frequency response is listed as 55 Hz, although no upper frequency endpoint, tolerance, or measurement method accompanies that value. The dual-cone description identifies the speaker configuration without adding unsupported details about driver materials or crossover design. Power handling, nominal impedance, dispersion, maximum sound-pressure level, transformer configuration, and tap settings are not included in the source data. For an accurate system-level assessment, these omitted values should be checked before selecting amplification or finalizing speaker spacing.

What Makes It Different

The distinguishing elements supported by the product record are straightforward: an Atlas Sound SD72W identity, an 8-inch dual-cone in-ceiling format, a listed sensitivity of 97 dB, a listed frequency-response value of 55 Hz, and a package containing twelve speakers. The quantity differentiates this listing from a single-speaker purchase and should be considered when comparing prices or planning inventory. The supplied information does not establish color, finish, grille style, construction materials, certification status, warranty coverage, or indoor and outdoor ratings, so those characteristics are intentionally not represented as product benefits.

Final Assessment

This twelve-speaker package is a focused option for a project already specifying the Atlas Sound SD72 or SD72W speaker family and an in-ceiling, 8-inch dual-cone format. Its documented performance data consists of 97 dB sensitivity and a 55 Hz frequency-response value. The source record is not complete enough to determine amplifier compatibility, mounting requirements, coverage, or included accessories. Before purchase, confirm the exact model designation, electrical specifications, ceiling requirements, required installation components, and whether the package contents meet the planned twelve-position layout.