My Dual Tang Band 8x12 Tapped Horn Project - Page 10 - Home Theater Forum and Systems - HomeTheaterShack.com

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post #91 of 99 Old 06-16-10, 12:46 AM
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Re: My Dual Tang Band 8x12 Tapped Horn Project

What are your overall listening impressions for music. To me the tapped horn just sound more musical?

Matt

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post #92 of 99 Old 06-16-10, 09:07 AM Thread Starter
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Re: My Dual Tang Band 8x12 Tapped Horn Project

I don't do a lot of music listening with it, but that's my impression as well.
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post #93 of 99 Old 06-29-10, 03:33 PM Thread Starter
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Re: My Dual Tang Band 8x12 Tapped Horn Project

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Oklahoma Wolf wrote: View Post
I did indeed - working on a design for two Rockford P3D210's that will do everything this one does with a bit more extension in a smaller package. Thinking about it as a couch riser type of thing. So far, it's modeling to reference in half space.
Forget the Rockfords. Found something that works better I can purchase a lot closer... the CSS SDX10. Here's a teaser:



Half space, one watt, two 10" SDX's. 523 liters. Does reference in half space before hitting Xmax, with a much smoother response than those Rockfords. And with a lower compression ratio, too. Should hit north of 125dB without a lot of trouble if I park it where the TB horn is and let the drivers exceed Xmax a bit. Run it alongside the TB horn, and I should be able to test the response time of the RCMP to my house. Might even get clean response up to 100Hz, too, if I'm lucky.

I wanted more sensitivity from this, but the model looks so good I'm having trouble caring. Over the same two woofers in a vented box, the horn with one watt in half space adds about 5.5dB at 17Hz, 2dB at 40Hz, and 8dB at 100Hz. I can probably wring a bit more sensitivity out of it, or more extension, but do I really want to? That there is the question. It's about 110 liters smaller than the Tang Band horn as is - I want to keep the size down. And right now, the size is almost identical to the best I got out of the Rockfords, and should be easier to fold.

But this is something for next year... I have no "crazy subwoofer" budget left this year

Last edited by Oklahoma Wolf; 06-29-10 at 03:47 PM.
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post #94 of 99 Old 07-01-10, 11:47 PM
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Re: My Dual Tang Band 8x12 Tapped Horn Project

That's roughly the same volume at a 2' THT -- nice. What's the form factor?
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post #95 of 99 Old 07-02-10, 12:06 AM Thread Starter
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Re: My Dual Tang Band 8x12 Tapped Horn Project

I'll probably double fold it like the horn I have now. Folding tapped horns isn't my strong suit. Will be trying to get the height to come in at under 40," with the width under 12." The TB horn will be running horizontally across the back of the room behind the projector screen firing into one corner, which means I have about 52" of space next to it for the second horn to stand vertically and fire into the other corner.

I definitely want this one to have a big bite with a nice small footprint. That's just so I can turn off the TB horn and see if people will believe all that output is coming from just that one smaller box and nothing at all from the big one
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post #96 of 99 Old 07-02-10, 01:08 AM
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Re: My Dual Tang Band 8x12 Tapped Horn Project

Sounds promising, I'm looking forward to seeing how you bring it together.
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post #97 of 99 Old 07-12-10, 11:34 AM Thread Starter
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Re: My Dual Tang Band 8x12 Tapped Horn Project

Decided to get the Flight of the Phoenix experience on video:


It hit 120dB at listening position again during the test run, but I was away from the meter when it happened during recording and thus didn't get it on video. It did do 119dB on video.

The barrel roll scene was fun to video up by the horn mouth. 22Hz at high levels

And then I looked close found out that DVD has a DTS track I didn't know about. Doh. Didn't think that a pan and scan title out of the Wal-Mart discount bin would have DTS.
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post #98 of 99 Old 10-08-11, 02:59 PM
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Re: My Dual Tang Band 8x12 Tapped Horn Project

Well what you actually got is a Taped Tapered Quarter Wavelength Resonator. They work well as you have found out. But a true tapped horn it is not. They are evily difficult to make and can be done with only a small handful of drivers.





Mark[/QUOTE]

I'm sure I missed it in some other string; But what about this is not a tapped horn !
Are you referring to the lack of a proper horn taper that a wide range transducer would need ? A taper that I can't conceive, would have any bearing on a bottom octave transducer ?
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post #99 of 99 Old 10-08-11, 03:47 PM Thread Starter
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Re: My Dual Tang Band 8x12 Tapped Horn Project

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terryeh wrote: View Post
I'm sure I missed it in some other string; But what about this is not a tapped horn !
Are you referring to the lack of a proper horn taper that a wide range transducer would need ? A taper that I can't conceive, would have any bearing on a bottom octave transducer ?
As I understand him, Mark defines horns as having an ideal horn flare. This project does not... it's undersized to make it fit in a space I could build it without it looking like someone's house. If it had an ideal horn flare, it would be a much bigger box.

Me? I still call it a tapped horn
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