Acoustic Research AR-3a, a famous closed-back instrument favored by celebrities including Miles Davis and Karajan. The stand is for photography purposes only and is not included. Saran net replacement (hemp cloth specification). Baffle plate, matte black paint. Woofer edge center cap replacement. Repair and painting of rear corners. We carry out maintenance and repairs at our store. Each part works normally. Acoustic Research (AR), a long-established speaker brand representing the East Coast of the United States. The AR3a is a model that has been used by musicians such as Miles Davis and Karajan. This speaker system is known as a masterpiece and has been favored by celebrities in the jazz and classical music worlds. The unique acoustic suspension system used in the compact, sealed enclosure makes this a one-of-a-kind product. This is a sound that fans of closed-type British speakers such as the ROGERS LS3/5A should definitely give it a listen. System: 3-way, 3-speaker, acoustic suspension system, bookshelf type. Low frequency unit: 30cm cone type. Mid-range unit: 3.8cm dome type. High frequency unit: 2cm dome type. Frequency response: 30Hz to 20kHz. Minimum amplifier output: 25W (RMS, per channel) or more. Crossover frequencies: 575Hz, 5kHz. External dimensions: Width 356 x Height 635 x Depth 292 mm. Weight: 24kg (per unit). We are a licensed company authorized by the Tokyo Metropolitan Government to export pre-owned goods. Rest assured, you can do business with us with confidence. Authorization Number: 303252119493. International Buyers – Please Note. Please check the photos carefully before ordering.