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32 X 4inch 2way Coaxial Car Speakers

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slaz View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote slaz Quote  Post ReplyReply Direct Link To This Post Posted: 27 October 2020 at 2:11am
Originally posted by markie markie wrote:

I'm confused. How is it possible to wire 8 x 4 ohm speakers in series/parallel to get an overall 4 ohm impedence????


Maybe his missus insisted - and he went "yes dear". :-)

More likely he didn't read the OP properly, and assumed the drivers would be 8R.

8 x 4R can (sensibly) be wired as 0.5R (1s98p), 2R (2s4p), 8R (4s2p), or 32R (8s1p).


REMEMBER....POLITICIANS AND DIAPERS SHOULD BE CHANGED OFTEN AND FOR THE SAME REASON
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SamV View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SamV Quote  Post ReplyReply Direct Link To This Post Posted: 28 October 2020 at 12:20am
Car speakers are 4ohm though.
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concept-10 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote concept-10 Quote  Post ReplyReply Direct Link To This Post Posted: 28 October 2020 at 8:39am
Originally posted by slaz slaz wrote:

Originally posted by markie markie wrote:

I'm confused. How is it possible to wire 8 x 4 ohm speakers in series/parallel to get an overall 4 ohm impedence????


Maybe his missus insisted - and he went "yes dear". :-)

More likely he didn't read the OP properly, and assumed the drivers would be 8R.

8 x 4R can (sensibly) be wired as 0.5R (1s98p), 2R (2s4p), 8R (4s2p), or 32R (8s1p).



Yep I did misread that they were 4ohm, my missus insisted ? twat.
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imageoven View Drop Down
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Post Options Post Options   Thanks (1) Thanks(1)   Quote imageoven Quote  Post ReplyReply Direct Link To This Post Posted: 28 October 2020 at 9:22am
Originally posted by madboffin madboffin wrote:

You could also configure 8 of them as a "barber pole" or spiral column with each driver offset by 5 to 10 degrees relative to the one below / above. If you get the offset angle right it should give a reasonable match between the HF and mid / low coverage - which will be quite wide, assuming a narrow column.


Interesting, I've never come across this design.
Keep pushing on, things are gonna get better.
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slaz View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote slaz Quote  Post ReplyReply Direct Link To This Post Posted: 28 October 2020 at 11:21am
Originally posted by concept-10 concept-10 wrote:

Originally posted by slaz slaz wrote:

Originally posted by markie markie wrote:

I'm confused. How is it possible to wire 8 x 4 ohm speakers in series/parallel to get an overall 4 ohm impedence????


Maybe his missus insisted - and he went "yes dear". :-)

More likely he didn't read the OP properly, and assumed the drivers would be 8R.

8 x 4R can (sensibly) be wired as 0.5R (1s98p), 2R (2s4p), 8R (4s2p), or 32R (8s1p).



Yep I did misread that they were 4ohm, my missus insisted ? twat.


OK OK - keep your hair on - wasn't meant to be insulting. I admit it wasn't a great quip.

REMEMBER....POLITICIANS AND DIAPERS SHOULD BE CHANGED OFTEN AND FOR THE SAME REASON
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