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An automotive head unit, sometimes called the infotainment system, [1] is a vehicle audio component providing a unified hardware interface for the system, including screens, buttons and system controls for numerous integrated information and entertainment functions.
Some head units have built-in stereo amplifiers. Other car audio systems use a separate stand-alone amplifier. Every amplifier has a rated power level sometimes noted on the head unit with the built-in amplifier, or on the label of a stand-alone unit. Coaxial speakers: These are the most common type of car speakers and are often factory-installed.
December 2006: Pioneer closes its car audio division in Singapore. January 2007: Pioneer displays their 9 mm (0.35 in) thick concept plasma, [12] as well as their "extreme contrast" concept plasma. [13] July 2008: Pioneer develops 16-layer Blu-ray Disc capable of storing 400 GB. [14] November 2009: Pioneer moves its head office from Tokyo to ...
1966: Introduces fully transistorised audio products for the first time in the industry. 1969: The Trio Electronics (in 1996 renamed to Kenwood) TR-7100, 144 MHz amateur radio car transceiver goes on sale. 1978: Introduces its first professional analogue two-way radios. 1979: Establishes the company's first overseas production unit in Singapore.
An Alpine car audio remote control. 1981- World's first automotive navigation system, created for Honda as the Electro Gyrocator. 1982 - World's first in-car computerized equalizer. 1983 - Alpine introduces their first remote control auto security systems. 1984 - Alpine introduces the Model 9500 Mobile Cellular Telephone. 1990 - 7909 CD Tuner.
The Pioneer III railcar was a short/medium-distance coach designed and built by the Budd Company in 1956 with an emphasis on weight savings. A single prototype was built, but declines in rail passenger traffic resulted in a lack of orders so Budd re-designed the concept as an electric multiple unit (m.u.).