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These parameters are published in specification sheets by driver manufacturers so that designers have a guide in selecting off-the-shelf drivers for loudspeaker designs. Using these parameters, a loudspeaker designer may simulate the position, velocity and acceleration of the diaphragm, the input impedance and the sound output of a system ...
From about 1900 to the 1950s, the "lowest frequency in practical use" in recordings, broadcasting and music playback was 100 Hz. [9] When sound was developed for motion pictures, the basic RCA sound system was a single 8-inch (20 cm) speaker mounted in straight horn, an approach which was deemed unsatisfactory by Hollywood decisionmakers, who hired Western Electric engineers to develop a ...
A rotary woofer is a subwoofer-style loudspeaker which reproduces very-low-frequency content by using a conventional speaker voice coil's motion to change the pitch (angle) of the blades of an impeller rotating at a constant speed. The pitch of the fan blades is controlled by the audio signal presented to the voice coil, and is able to swing ...
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.
Monster Cable (manufacturers speaker wiring) Nakamichi (also an OEM option for Lexus vehicles) Naim (specially for 'Bentley' a British brand) Orion; Panasonic (a brand of Matsushita Electric Industrial Co.) (manufacturers Fender and ELS sound systems for Volkswagen and Acura vehicles) Parrot Automotive
Some two channel amplifiers, or stereo amplifiers, have the built in facility to operate in bridge mode by operating a switch and observing the input and output connections detailed on the back panel or in the manual. This option is most often found in high power PA equipment or amplifiers designed for car audio applications.
U.S. Navy Lockheed EP-3A Orion of air test and evaluation squadron VX-1 Pioneers in 1983. This aircraft was used in the "EMPASS" project, the "Electromagnetic Performance of Air and Ship Systems" (EMPASS) Project. EP-3A: Seven modified for electronic reconnaissance testing. EP-3B: Least known of all in the P-3 family. Three P-3As (BuNo 149669 ...
However, on April 1, 2015, the "new" Orion Electric Co., Ltd. was established, and took over previous Orion Electric business. On January 19, 2019, Orion Co., Ltd., a subsidiary of the Doshisha Corporation in Osaka, took over the Orion brands and businesses. On May 20, 2019, Orion Electric Co., Ltd. had once again reached insolvency.