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05/19/13 at 04:13:11

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Horn throat area reduces? (Read 6914 times)

mwsartain Verified Member Posts: 4	Re: Horn throat area reduces? Reply #15 - 07/29/08 at 03:24:35 Keep us posted Johncc ! I'm curious of your results. Oh, and good luck!
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musgofasa

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monkey? I want to
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Re: Horn throat area reduces?
Reply #16 - 07/29/08 at 15:07:48

I had a thought this morning. Have you ever heard of a "quasi port" band pass design? Back in the early nineties, it was a popular design. Basically it was a 4th order box with one woofer in a sealed chamber on either side of a shared chamber that contained 4 ports, each tuned to a different frequency. I think the WO probably performs closest to this in function. Admittedly, I believe it is more efficient and has a smoother response, but I think this might be the closest resemblance to the design I can think of.

Good luck to both of you you guys.

Keep us posted!
Robert

The graveyard is full of important men

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Steve Deckert

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If the 1st watt
sucks why continue?

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Re: Horn throat area reduces?
Reply #17 - 07/30/08 at 00:05:35

If you haven't built the cabinet yet, here are some thoughts, if you have, I apologize.

The box can be scaled up or down, but the proportions must remain the same.

Scaling the box down will raise the cut off frequency causing you to compensate with more power or EQ boosting the low bass. That in turn will will create a clipping condition in the amplifier which will fry the voice coil.

Since your vehicle will have no cabin gain, this problem is multiplied by a factor of at least 3.

Best box, most possible bass for that vehicle is a DBK10, deathbox.

Steve

« Last Edit: 07/30/08 at 00:06:08 by Steve Deckert »

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johncc Verified Member Posts: 9	Re: Horn throat area reduces? Reply #18 - 07/30/08 at 01:59:31 Steve, Can you comment on my thought that I try to retain the size of the port/horn section in the scaling down process? Thank you. John.
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johncc Verified Member Posts: 9	Re: Horn throat area reduces? Reply #19 - 07/30/08 at 02:40:59 musgofasa, Thanks for the suggestion. Looks like quasi port is a fairly complicated design process though. John.
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johncc Verified Member Posts: 9	Re: Horn throat area reduces? Reply #20 - 08/01/08 at 00:52:38 On further research and because my space constraints make the scaling of the WO design iffy, I have decided not to proceed. (I will go with a conventional ported enclosure.) Thanks to those who have provided input and good luck with your own projects. John.
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aznboi3644 Seasoned Member I love YaBB 1G - SP1! Posts: 115	Re: Horn throat area reduces? Reply #21 - 09/19/08 at 00:49:12 I'm new to Hornresp but if Hornresp can model a front loading horn than I believe the WO can be modeled in the program. I read an article that explained the very close similarities between a front loaded horn and a bandpass enclosure. I'll try to dig it up
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