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Acoustic Research was a Cambridge, Massachusetts-based company that manufactured high-end audio equipment. The brand is now owned by VOXX.Acoustic Research was known for the AR-3 series of speaker systems, which used the 12 in (300 mm) acoustic suspension woofer of the AR-1 with newly designed dome mid-range speaker and high-frequency drivers.
The AR-2, produced in 1956, was a no-frills version of the speaker at a lower price. The independent testing agency Consumers Union, publisher of Consumer Reports magazine, did a report on loudspeakers that year. The AR-2 was one of only four speakers that received the Check Rating for highest quality, regardless of price.
The two most common types of speaker enclosure are acoustic suspension (sometimes called pneumatic suspension) and bass reflex.In both cases, the tuning affects the lower end of the driver's response, but above a certain frequency, the driver itself becomes the dominant factor and the size of the enclosure and ports (if any) become irrelevant.
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Later Polk speaker models used arrays of drivers—Stereo Dimensional Array (SDA)—to cancel the crosstalk from the left speaker to the right ear and from the right speaker to the left ear, so as to expand the stereo image beyond the space between two stereo speakers. The SDA effect is used in some current Polk speakers.
This range was extended in 2007 to include a 5.1 AV variant, [8] and later a 2.1 version [9] and a smaller 'Mini' version. To complete the line-up, speakers were launched to match the Solo electronics. First were the 'Alto' two-way speakers for the stereo units, then a sub/satellite speaker system called Muso/Logo was released for the AV versions.
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3180 Kingsdale Center, Columbus, OH · Directions · (614) 459-6494