The AtlasIED SM42T-B is a high-performance, all-weather 4" 2-way surface mount speaker designed to deliver clear, full-range sound in both indoor and outdoor commercial environments. This black version features a 4" polypropylene woofer and a 1" dome tweeter housed in a rugged, UV-resistant enclosure, ensuring long-term durability in any setting. Equipped with an internal 16-watt 70V/100V transformer and a wide frequency response of 85Hz–20kHz, the SM42T-B provides consistent audio coverage for background music, paging, or foreground reinforcement. Its versatile design includes a multi-position, C-shaped mounting bracket and integrated terminal strip for simplified installation. Ideal for retail stores, restaurants, patios, educational campuses, or public spaces, the SM42T-B combines AtlasIED reliability with professional-grade performance for AV integrators and installers.

Features

• 1" Ferrofluid Cooled Dome Tweeter & Highly Efficient 4" Polypropylene Woofer

• All 1/4"-20 Hardware Inserts Allow Easy Integration of "Off The Shelf" Security Hardware

• Atlas Sound POLYGUARD High Frequency Protection Circuit

• Available in Black or White

• Color Matched Heavy-Duty Zinc Chromate Plated & Powder Coated "C" Bracket (Included)

• Five-Year Warranty

• Screwdriver Adjustable 16-Watt 70.7V/100V Transformer (may be bypassed for 8-ohm operation)

• TRX WAVEGUIDE- Constant Directivity Style High Frequency Wave Guide System

• Weather-Resistant Construction for Year-Round Indoor or Outdoor Use

• OMNIMOUNT Compatible

• UL Certified, Safety Listed to UL1480A