The “Extron S1 28” is a specific model of two-way surface mount speaker designed by Extron. Extron is a prominent manufacturer of professional AV (Audio Visual) integration products, known for their high-quality solutions for commercial, educational, and government installations. The SI 28 is part of Extron’s line of speakers built for installed sound systems, prioritizing clear voice reproduction and excellent music fidelity in a variety of environments. Key Features and Specifications of the Extron SI 28: Speaker Type: Two-way surface mount speaker. This means it’s designed to be mounted on a wall or other flat surface. Woofer: Features an 8-inch (20.3 cm) long-throw woofer with dual tuned bass reflex ports. This allows for good low-frequency response. Tweeter: Equipped with a 1-inch (2.5 cm) ferrofluid-cooled, aluminum dome tweeter. Ferrofluid cooling helps dissipate heat from the voice coil, improving power handling and reliability. The aluminum dome ensures crisp high-frequency reproduction. Exclusive Conical Horn Design: Extron highlights this design as contributing to minimum phase shift and a flat response across the mid and high-frequency ranges, leading to clear and balanced sound. Frequency Range: 50 Hz to 20 kHz. This indicates a wide frequency response suitable for both voice and music. Power Handling: 90 watts continuous pink noise 180 watts continuous program This means it can handle a good amount of power for background music or general sound reinforcement in medium-sized spaces. Nominal Impedance: 8 ohms. This is the standard impedance for direct connection to most power amplifiers. Application: Primarily designed for professional installed sound systems in environments like classrooms, conference rooms, retail spaces, and other commercial facilities where clear and reliable audio is needed. Design: Typically comes in a black or white enclosure, designed to blend into various architectural settings. Sold as Pairs: Extron generally prices and sells these speakers as pairs. Mounting: Designed for surface mounting, often with compatible mounting accessories (which may be sold separately). Note on Status: The Extron SI 28 model is listed as “Retired” on Extron’s official website. This means it’s no longer in active production and has likely been replaced by newer models in their speaker lineup (such as the SM series like SM 28, SM 26, etc.). This has implications for availability and pricing. Category: Used Products
