Is There a smallish prosound tapped horn 35-80hz - diyAudio
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Old 13th December 2011, 12:29 PM   #1
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Default Is There a smallish prosound tapped horn 35-80hz

I have been reading the forums here for almost a week now searching for a good TH design that can be used as much at home(single) and also in prosound setups and have so far failed to find an appropriate design so far. Can you help me?

All of my current tops/mid speakers do fine down to 80-100hzhz so I have no real need for a sub to do anything upwards of that so really only looking to be capable 0f 35-80hz. Ideally I would like the boxes small enough to carry by myself and therefore no more than 25-30kg. Naturally I expect that for prosound I will need at least four for decent events and possibly expand to 16 in the future.

Jbells look good but I would prefer 12" drivers and smaller design
jbell's set of four tapped horns

Or Ideally a small 12" maybe lab12 version of the othorn
The Othorn tapped horn

I was at one point looking at building Bill Fitzmurice's T30 folded horn but its output drops off significantly the lower the freq which is why I have opted for a tapped horn
Tuba 30

Although I don't mind designing an enclosure myself I would much rather build a proven design.

Any ideas?
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Old 13th December 2011, 12:51 PM   #2
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Just found this design and its the closest yet, still a 15" driver and not sure of the weight but looks great. A slightly smaller/thinner lab12 version would be perfect I think.

40Hz TH
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Old 13th December 2011, 01:10 PM   #3
jbell is offline jbell  United States
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How about this...
Emininence eminator 2512 driver (which is cheap) Other 12" drivers work as well.

It's a 'cute' pa sub... aka small, just like you are asking. 17x20x22 About half the size and half the output of the ss15. Find a wall or corner for it, and it works exceptionally well. (about 130db@50hz with 150watts)

If you've built other folded cabinets, the attached picture should give you all you need.
Attached Images
File Type: jpg Eminator3.JPG (69.8 KB, 778 views)
File Type: jpg eminator-hornresp.JPG (57.8 KB, 753 views)
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Old 13th December 2011, 01:36 PM   #4
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That looks really good actually . Do you have a link to the thread of this design, if it has one? And would the lab12 be a lot better in this?

That sure is small, Even a bit bigger and higher wattage would be better but that's the best I have seen so far and a definite option.

Thanks Jbell,

Last edited by reminence; 13th December 2011 at 01:51 PM.
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Old 13th December 2011, 01:57 PM   #5
jbell is offline jbell  United States
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no build threads -- I've built them for dance studios using a philips HTIB to power them. In that setting they work really well.

Delta 12lf (and the 4 ohm 12lfc) is another driver that works. LAB12 not so much. This design doesn't really have the gain of a typical TH that I design -- it's primary goal was cheap build and small size. (wholesale 2512 is $64, buy.com has them for $71 each) However it takes 2 of these to equal a single ss15. 35hz high pass required.

Last edited by jbell; 13th December 2011 at 02:01 PM.
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Old 13th December 2011, 02:56 PM   #6
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Man there is so much to read on here. I just found your ss15 designs and they are awesome, almost perfect except have 40-50hz low cuttoff when I am more looking towards 35.

Last edited by reminence; 13th December 2011 at 03:20 PM.
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Old 13th December 2011, 03:27 PM   #7
jbell is offline jbell  United States
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loud, low, small

pick 2.
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Old 13th December 2011, 04:10 PM   #8
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^exactly. Your goals are not reasonable. Pro sound plus 35hz is NOT going to be small...
For the ss15 (which is one of the most efficient TH's by the DIY community (thanks jbell)) you will need a bunch to get respectsble pro sound 35hz. (135+ db)

Dag's sub looks pretty darn good for it's size (extension and efficiency) and the lab 15 drivers aren't too Pricey.

If you want smaller and can deal with multiples (you said up to 16) why not use a Bass Reflex design...
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Old 13th December 2011, 04:56 PM   #9
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Yeah, I was looking at dags 40hz sub that ended up being 35hz and vs the ss15 it trades some efficiency for a little more extension of which seams perfect for me. 40Hz TH
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Old 13th December 2011, 10:28 PM   #10
Djim is offline Djim  Netherlands
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