• Car stereo - I have the option to specify the frequency range being sent to the speakers.

    When I search for what frequency range I should run the woofers at I get results for sub-woofers, which isn't very helpful.

    The options I have are set by rotary dial, and the marks are at 50, 60, 80, 120, 200 and 500 Hz.

    By using the accompanying switch I specify if the speakers on that channel should be above or below the frequency set.

    I've got two woofers, and then four midwoofer/tweeter pairs.

    Stick them all on 200 Hz and see what it sounds like?

  • Do you have the frequency responses for each unit ? They normally come with a graph showing spl Vs Hz on a log scale, which you can look at too see where it drops off.

    If not I would start at 200 and compare it with 500 and 120

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