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It depends on the definition of "powerful." In terms of output power, which is a factor in determining loudness and SPL, stock sound systems in cars range from 30-50 watts per channel (you can think of that as per speaker). Aftermarket sound systems can produce output that exceeds over 2000W! Home audio systems are generally less than that, most amplifiers produce outputs of 50-300W per channel.

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14y ago

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