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Old 4th January 2008, 09:01 AM   #11
95Honda is offline 95Honda  Germany
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I'd be willing to bet you would get the best results building your first H/T box as a bass-reflex, like you intended from the start.
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Old 4th January 2008, 03:28 PM   #12
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I cant find anything about a tapped horm, other than a fellow has a patent on a design.

I'll go with the bass reflex for now, and if I dont like it, it'll be changed.
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Old 4th January 2008, 04:53 PM   #13
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Quote:
Originally posted by 95Honda
I'd be willing to bet you would get the best results building your first H/T box as a bass-reflex, like you intended from the start.
A base reflex like he intended is fine... but what he designed is not a bass reflex, it is a transmission line with a pre-chamber.

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Old 4th January 2008, 04:54 PM   #14
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can't find anything about a tapped horn
Collaborative Tapped horn project
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Old 4th January 2008, 05:10 PM   #15
95Honda is offline 95Honda  Germany
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Quote:
Originally posted by planet10


A base reflex like he intended is fine... but what he designed is not a bass reflex, it is a transmission line with a pre-chamber.

dave
Exactly. Note when I said "intended".........

I think he will be very happy with a proper bass reflex, with a proper port.
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Old 4th January 2008, 05:54 PM   #16
MaVo is offline MaVo  Germany
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Quote:
Originally posted by 95Honda
I'd be willing to bet you would get the best results building your first H/T box as a bass-reflex, like you intended from the start.
building a th isnt more difficult than building a br. just something different. instead of finding good numbers for volume, port size and length, you look for good numbers for throat, mouth, length and driver position. everything else is just woodwork.
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Old 4th January 2008, 06:39 PM   #17
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ok, so I am going to stick with a bass reflex. Now I need your guys' help. I'm pretty much stuck. Can anyone design me, or put me on the right track for an enclosure?
my maximum measurements are:

8 feet to the ceiling (it'd be nice to keep it under)
30" wide
36" deep

here's a bit of the floor plan

Click the image to open in full size.



I want it to go low. preferably 15 hertz. Any ideas?
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Old 4th January 2008, 06:43 PM   #18
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I like the looks of this.. But I have no idea how to go about designing one.

http://www.diyaudio.com/forums/attac...amp=1173337480
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Old 5th January 2008, 07:01 AM   #19
95Honda is offline 95Honda  Germany
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I really don't think you need much help, you obviously understand how to get volume, port length, etc. And your drawings look very good. Just re-design your box using some of the input you have recieved.

You may also not need to bend the ports either, depending on your box volume and shape. Here is a picture of a box I built for an Adire Malstrom about 5 or 6 years ago. It was very large, Maybe 13-14ft3 and had a pair of 6" I.D. PVC pipes for vents. They only went along the bottom of the cabinet and ended up about 8" from the back. Also, 2 6" I.D. ports have plenty of area for the Malstrom or an SX 18. Tuning was right around 18Hz, IIRC..
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Old 5th January 2008, 07:03 AM   #20
95Honda is offline 95Honda  Germany
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Here is a picture of an SE15 for a set-up almost identical to what you want to do. There is a Dayton 1000 watt plate amp on the back of the thing also. The vent and cabinet are smaller than what you would use, but proportionaly, similar. The vent went along the bottom and about half way up the back for a tune right around 20Hz.
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