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The 1925 paper [1] of Chester W. Rice and Edward W. Kellogg, fueled by advances in radio and electronics, increased interest in direct radiator loudspeakers. In 1930, A. J. Thuras of Bell Labs patented (US Patent No. 1869178) his "Sound Translating Device" (essentially a vented box) which was evidence of the interest in many types of enclosure design at the time.
Orion; Panasonic (a brand of Matsushita Electric Industrial Co.) (manufacturers Fender and ELS sound systems for Volkswagen and Acura vehicles) Parrot Automotive; Pioneer (also an OEM option for many GM, Ford, Mazda pickup trucks, Toyota/Lexus and Honda vehicles) Pride Car Audio; Polk Audio; Rainbow-Audio Germen Engineering; Sanyo; Sony
A woofer or bass speaker is a technical term for a loudspeaker driver designed to produce low frequency sounds, typically from 20 Hz up to a few hundred Hz. The name is from the onomatopoeic English word for a dog's deep bark, "woof" [1] (in contrast to a tweeter, the name used for loudspeakers designed to reproduce high-frequency sounds, deriving from the shrill calls of birds, "tweets").
User's guide for a Dulcitone keyboard. A user guide, also commonly known as a user manual, is intended to assist users in using a particular product, service or application. It is usually written by a technician, product developer, or a company's customer service staff. Most user guides contain both a written guide and associated images.
2007 Toyota Yaris hatchback owner's manual 1919 Ford Motor Company car and truck operating manual. An owner's manual (also called an instruction manual or a user guide) is an instructional book or booklet that is supplied with almost all technologically advanced consumer products such as vehicles, home appliances and computer peripherals.
Orion, an 1843 poem by Richard Henry Horne; Orion, a 1978 novel by Gail Brewer-Giorgio; Orion and King Arthur, a 2012 novel series by Ben Bova; The Orion, an 1893 book on sociology by Bal Gangadhar Tilak; Dead at Daybreak, a 1998 novel by Deon Meyer, originally published as Orion
Orion is a series of American solid-fuel rocket stages, developed and manufactured by a joint venture between Hercules Aerospace and Alliant Techsystems (now Northrop Grumman Innovation Systems). They were originally developed for use as all three stages on the Pegasus rocket , first flown in 1990.
A Lockheed P-3F Orion of the Islamic Republic of Iran Air Force (s/n 5-8703), at Shiraz Int'l Airport in 2007. Six P-3F Orions delivered to the former Imperial Iranian Air Force in the late 1970s. The airframe of the P-3F was based on the P-3C, which was the then-current production variant of the P-3 for the USN.