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    active crossover and passive crossover

    I am very interested in car modification. Those who have a certain understanding of car audio modification may know the concept of active crossover and passive crossover, but it is not very clear to me. What is the active crossover and passive crossover?

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    Re: active crossover and passive crossover

    Hi,

    Please do simple internet research on your own.

    in short (not complete infromation):
    * Active crossover is placed at input of the power amplifier
    * Passive crossover is placed at the output of the power amplifier

    For more information, please
    * first do an internet research on your own
    * elaborate your question
    * give (links to) documents you refer to

    Klaus
    Please don´t contact me via PM, because there is no time to respond to them. No friend requests. Thank you.



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    Re: active crossover and passive crossover

    Do you know the function of a two-way speaker crossover network or circuit?
    It passes high frequencies to the tweeter but blocks low frequencies that will damage the fragile tweeter. The crossover also passes low frequencies to the woofer and sometimes blocks high frequencies that cause a woofer to Shriek.

    I have seen and heard many speakers with passive crossovers and also many sound systems with active crossovers and most (the ones designed properly) sound fine.
    Most cheap two-way car speakers use only one capacitor in series with the tweeter to prevent damage and the woofer is allowed to Shriek. Some of them sound fine.



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    Re: active crossover and passive crossover

    I am not very clear about the function of a two-way speaker crossover network or circuit? If the quality of the system equipment is not good enough to play the active crossover, it is a waste of money. Many people use the speakers that are very cheap and not very good as active crossover . The sound is not as good as the same brand of good power amplifiers when the whole set of audio is matched. What do you think? Is that right?



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    Re: active crossover and passive crossover

    The difference between the active crossover [moderator action: removed link] and the passive crossover in the car audio is whether the crossover process is before or after the power amplification, and the crossover is called the active crossover before the power amplification.
    Last edited by KlausST; 23rd November 2018 at 08:46. Reason: Removed hidden link



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    Re: active crossover and passive crossover

    One amplifier can drive a speaker that has a passive crossover but two amplifiers are needed for a two-way (woofer and tweeter) active crossover. The active crossover system produces less distortion.



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    Re: active crossover and passive crossover

    I saw an article telling the benefits of bi-amping: One amplifier for the bass portion (woofer) and another amplifier for the treble portion (tweeter). Although we like the convenience of having a single amplifier do the entire job, it is not sufficient if its watt rating is equal to the sum of the bi-amped sections. Instead the single amp needs to have 5 or 10 times the power we expect. The reasoning has to do with the way we sum peak decibel levels as compared to the way we sum peak watt levels.



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