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2. Phonocar - Wikipedia

   en.wikipedia.org/wiki/Phonocar

   In 1972, Phonocar manufactured the first wooden car-radio console, complete with speaker and accessories. In 1976, Phonocar created her first car hi-fi Speakers; in 1978, her first car amplifier, the well-known Power Box. In 1981, Phonocar introduced a radical change in the car hi-fi concept, by creating the wooden rear panels allowing for the ...

3. Audio power - Wikipedia

   en.wikipedia.org/wiki/Audio_power

   Typical loads used are 8 and 4 ohms per channel; many amplifiers used in professional audio are also specified at 2 ohms. Considerably more power can be delivered if distortion is allowed to increase; some manufacturers quote maximum power at a higher distortion, like 10%, making their equipment appear more powerful than if measured at an ...

4. Bridged and paralleled amplifiers - Wikipedia

   en.wikipedia.org/wiki/Bridged_and_paralleled...

   Car audio amplifiers commonly have only a notional 13.8 volt supply, which would ordinarily limit the voltage swing available at the output to + and − 6.9 volts. Whilst it would be possible to achieve higher voltage swings by such means as DC-to-DC conversion of the supply voltage, using a bridge mode design allows for twice the voltage swing ...

5. Vehicle audio - Wikipedia

   en.wikipedia.org/wiki/Vehicle_audio

   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.

6. List of car audio manufacturers and brands - Wikipedia

   en.wikipedia.org/wiki/List_of_car_audio...

   This list of car audio manufacturers and brands comprises brand labels and manufacturers of both original equipment manufacturer (OEM) and after-market products generally related to in-car entertainment that already have articles within Wikipedia. While components sold by these companies have much in common with other audio applications or may ...

7. Line level - Wikipedia

   en.wikipedia.org/wiki/Line_level

   Line out provides an audio signal output and line in receives a signal input. The line in/out connections on consumer-oriented audio equipment are typically unbalanced, with a 3.5 mm (0.14 inch, but commonly called "eighth inch") 3-conductor TRS minijack connector providing ground, left channel, and right channel, or stereo RCA jacks.