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2 x 12" + 2" part 2

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snowflake View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote snowflake Quote  Post ReplyReply Direct Link To This Post Posted: 20 May 2017 at 5:03pm
2.5 way crossover usually seems to be implemented by having the woofers in parallel and putting an inductor in series with one of the woofers so it has a LPF at the baffle step frequency. bass is increased by 3dB giving a flat response through the baffle step region.

alternatively you could wire the woofers in series and put a capacitor across one of them to implement the LPF. the response woudn't be flat but you would have the extra power and excursion capacity to get flat response with eq. would lose 3dB of headroom on the amp but the higher impedance load at bass frequencies would help.

the hf crossover is between the tweeter and the top woofer, rather than all three drivers. the midrange is covered by one driver rather than two, and at bass frequencies the two woofers are close enough that they act as a single source anyway.


Edited by snowflake - 20 May 2017 at 5:04pm
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nickyburnell View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote nickyburnell Quote  Post ReplyReply Direct Link To This Post Posted: 20 May 2017 at 5:12pm
Originally posted by snowflake snowflake wrote:

2.5 way crossover usually seems to be implemented by having the woofers in parallel and putting an inductor in series with one of the woofers so it has a LPF at the baffle step frequency. bass is increased by 3dB giving a flat response through the baffle step region.

alternatively you could wire the woofers in series and put a capacitor across one of them to implement the LPF. the response woudn't be flat but you would have the extra power and excursion capacity to get flat response with eq. would lose 3dB of headroom on the amp but the higher impedance load at bass frequencies would help.

the hf crossover is between the tweeter and the top woofer, rather than all three drivers. the midrange is covered by one driver rather than two, and at bass frequencies the two woofers are close enough that they act as a single source anyway.


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