Atlas Sound SM52T-B 5.25" 2-Way Weather Resistant Speaker System

5.25 Inch Weather Resistant 2 Way Speaker With Built In 70V 100V Transformer

The Atlas Sound SM52T-B is a compact, weather-resistant 5.25 inch 2-way surface mount speaker built for distributed sound applications in both indoor and outdoor settings. It combines a polypropylene woofer, a Ferrofluid-cooled titanium dome tweeter, and an integrated 70V/100V transformer with 8 ohm bypass, delivering smooth, even coverage across a 90 degree by 90 degree dispersion pattern. This combination of weather resistance and consistent coverage makes it well suited for commercial, retail, hospitality, and educational installations where speakers need to handle varied environments while maintaining even sound throughout a space.

Polypropylene Woofer And Ferrofluid Cooled Tweeter

At the core of the SM52T-B is a 5.25 inch polypropylene woofer with a rubber surround, paired with a 1 inch Ferrofluid-cooled dome tweeter for extended high-frequency performance and reliability under continuous use. TRX WaveGuide technology shapes the tweeter's output for uniform 90 degree by 90 degree coverage, helping maintain consistent sound quality whether a listener is standing directly in front of the speaker or off to the side. The crossover operates at 5 kHz using a first order low-pass and second order high-pass configuration, blending the woofer and tweeter output smoothly across the frequency range.

Integrated Transformer For Flexible Distributed Audio

An integrated 70V/100V transformer with multiple tap settings, including 0.94, 1.9, 3.7, 7.5, 15, and 30 watts, gives installers precise control over power distribution across a larger distributed audio system. An 8 ohm bypass option is also included for installations that call for direct low-impedance wiring instead of a distributed 70V or 100V line. This flexibility allows the same speaker model to serve either a single zone wired at low impedance or a larger multi-speaker distributed system without requiring a different speaker for each wiring approach.

Weather Resistant Construction Built To Last Outdoors

The SM52T-B is built from injection-molded, UV-stabilized polypropylene, giving it long-term resistance to sun exposure and outdoor weather conditions without the enclosure breaking down over time. A powder-coated aluminum grille and all-brass hardware add further protection against corrosion, particularly important in coastal or high-humidity environments. The enclosure has been salt spray tested to 100 hours under ASTM B117 standards, giving integrators a documented benchmark for its durability in harsh outdoor conditions. A PolyGuard high-frequency circuit adds protection against damage from excessive high-frequency signal levels, helping extend the tweeter's operational life.

Versatile Mounting With Included C Bracket

The SM52T-B ships with a durable, color-matched C-bracket that supports both vertical and horizontal mounting orientations, giving installers flexibility depending on the layout of a given space. It's also compatible with OMNIMOUNT mounting systems for installations using that mounting standard, along with a 5/8 inch-27 mic stand thread for temporary or portable setups. This range of mounting options makes the SM52T-B adaptable across permanent commercial installs, temporary event setups, and everything in between.

Detailed Specifications For System Design

The SM52T-B handles up to 100 watts RMS with a frequency response of 85 Hz to 20 kHz within plus or minus 3 dB, and a sensitivity rating of 90 dB at 1 watt measured at 1 meter. Nominal impedance in bypass mode sits at 8 ohms, giving system designers clear figures to work with when planning amplifier requirements and zone layouts. A 2-pole barrier strip input connector with wire capture caps provides a secure, reliable wiring connection point suited to commercial installation standards.

Finish Options And Long Term Warranty Coverage

The SM52T-B is available in a black finish, with a white model also available for installations requiring a different aesthetic match. The enclosure is also paintable, allowing integrators to color-match the speaker to specific architectural finishes when a completely custom appearance is needed. Backed by a five-year warranty, the SM52T-B is built with the expectation of long-term, dependable service in demanding commercial and outdoor environments.