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A stereo is a simpler version of today's home audio system or a Home Theater system. In the past, a stereo was unified audio component (box) that did everything starting with receiving and tuning the AM, FM, etc. signals, to finally outputting them to connected speakers.
The basics of a "stereo" system is that it takes electromagnetic power (current, either AC or DC) to power itself and its internal amplifiers and tuners. The tuner that's selected (AM, FM, etc) then takes any electromagnetic energy (radio waves) collected by the antenna, and both tunes (selects) a specific frequency band and amplifies that band. At this point, the electromagnetic energy (radio waves) have been converted to another form of electromagnetic energy (current).
This current (tuned frequency signal) is IF-subtracted / demodulated, and eventually converted to another current representing an amplitude-significant signal. This AM signal (current) is fed to another amplifier, and then piped to the speaker(s).
The speakers convert the electromagnetic energy (current) that's fed to them into mechanical energy that pushes on the speaker's surfaces. The speaker converts this mechanical energy (motion) into audio distortions in the air/atmosphere which we call sound (pressure).
So, conversions are:
electromagnetic energy (radio waves)
\/
electromagnetic energy (current)
\/
mechanical energy (speaker motion)
\/
mechanical energy (air pressure)
\/
MMMUUUUSSSSIIIIIICCCCCC!!!!!!!!!
Art Kshlerin
Wiki User
∙ 14y agoA stereo is a simpler version of today's home audio system or a Home Theater system. In the past, a stereo was unified audio component (box) that did everything starting with receiving and tuning the AM, FM, etc. signals, to finally outputting them to connected speakers.
The basics of a "stereo" system is that it takes electromagnetic power (current, either AC or DC) to power itself and its internal amplifiers and tuners. The tuner that's selected (AM, FM, etc) then takes any electromagnetic energy (radio waves) collected by the antenna, and both tunes (selects) a specific frequency band and amplifies that band. At this point, the electromagnetic energy (radio waves) have been converted to another form of electromagnetic energy (current).
This current (tuned frequency signal) is IF-subtracted / demodulated, and eventually converted to another current representing an amplitude-significant signal. This AM signal (current) is fed to another amplifier, and then piped to the speaker(s).
The speakers convert the electromagnetic energy (current) that's fed to them into mechanical energy that pushes on the speaker's surfaces. The speaker converts this mechanical energy (motion) into audio distortions in the air/atmosphere which we call sound (pressure).
So, conversions are:
electromagnetic energy (radio waves)
\/
electromagnetic energy (current)
\/
mechanical energy (speaker motion)
\/
mechanical energy (air pressure)
\/
MMMUUUUSSSSIIIIIICCCCCC!!!!!!!!!
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