Acoustic Research is a well-known brand in the Hi-Fi industry, specializing in the manufacturing of high-quality audio and video equipment. The company was founded in 1952 in the United States by Edgar Villchur and Henry Kloss. Acoustic Research has been committed to providing enthusiasts with superior audio systems that deliver exceptional sound performance.

Acoustic Research

The Acoustic Research AR-48s is a 3-way speaker system featuring a 10" acoustic suspension woofer, a 4" paper cone midrange, and a 1" fabric dome tweeter. This model represents an evolution of previous Acoustic Research designs, particularly the AR-2ax and AR-5, and is distinguished by a lower crossover point of 2500 Hz, attributable to its 1" tweeter. The midrange driver offers a wider bandwidth compared to older models, contributing to the AR-48s's sound qualities. Despite being constructed from vinyl-covered cabinets with plastic input posts, the internal crossover network is complex and utilizes air core inductors and non-polarized electrolytic capacitors. The crossover design incorporates interesting topologies that affect the phase relationships between drivers, suggesting a thoughtful approach to performance. The frequency response is listed as 45 Hz to 24 kHz, with a sensitivity rating of 87 dB. Overall, the AR-48s is designed for amplifiers with power outputs between 15 to 100 watts, making it suitable for various audio setups. However, due to age-related issues, individual units may require repairs or refurbishments, especially concerning driver integrity and crossover components.

AR-48s

by Acoustic Research

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