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Old 2nd October 2011, 07:52 PM   #1
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Default 4x15 tapped horn ?

So I have 4x 15's and I am thinking ether a large ported box or giving a horn a try. I want loud (140+ Db of clean out put. This will be used daily music and in my HT system.For the Mid bass and up is taken care of by 4 Klipsch LaScala'a . If it helps each sub can handle 2500 watt's program and burst's of up words of 10,000. burst defined as 5-7 seconds.
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Old 2nd October 2011, 09:30 PM   #2
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That's probably milliseconds, otherwise that's one heck of a driver. Power rating doesn't help much unless it's the Kilomax 15, a driver model or better T/S-parameters would be needed to give usefull information to you.

Best regards Johan
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Old 2nd October 2011, 10:05 PM   #3
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Milliseconds LoL no its seconds. Ill look up the manufactures T/S numbers but to be honest iv never had them work as for building a box. Box determans performance. I be leave these are the numbers but ill send and email.



Fs: 31.39 hz
Qms: 5.51
Vas: 2.356 cu. ft
Cms: 73.4 um/N
Mms: 352.2 g
Xmax: .625
Sd: 124 sq in
Qes: .43
Re: .765
Z: 1
Pe: 1000
Qts: .39
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Old 2nd October 2011, 11:45 PM   #4
jbell is offline jbell  United States
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what model driver is that?

It actually models well in the SS15 cabinet (single sheet TH challenge thread)
http://www.diyaudio.com/forums/attac...le_revised.pdf

Here's 4 cabinets at 1000watts per driver, well within xmax, and achieves your spl goals.
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Old 3rd October 2011, 12:20 AM   #5
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It's a high performance car audio sub, manufacturer call's for a minimum of 4.5 cu.ft. per driver. i have found 10 cu.ft works best tuned to 35 Hz.. feeding each one 14,000 watts. RMS.
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Old 3rd October 2011, 01:43 AM   #6
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Almost 16mm xmax what's the efficiency of the driver?

And what amp do you have that feeds each driver 14,000rms?? Most large scale pro audio amps don't feed that much power....
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Old 3rd October 2011, 02:13 AM   #7
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89 Db 1 watt 1 meter. The amps's are made by earthquake its an old school D3 amp. 18 volts/draws 745 AMPS.
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Old 3rd October 2011, 06:25 AM   #8
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So you have 4 of those amps? I'm just trying to figure out what kind of Car/electrical system would handle such a load lol
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Old 3rd October 2011, 07:12 AM   #9
Boscoe is offline Boscoe  United Kingdom
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Why would you possibly want to put 14,000w into a single driver?

18*745=13410W before you've converted 18V to a stupid high rails at +/-170V and amplified your signal!
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Old 3rd October 2011, 09:17 AM   #10
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Why? It was a a car well astride van built for Db drag racing. I actually have 4 of them. As for power 23 12 volt battery's 2 6 volt battery's. An 100 1 fd. Caps. It did burps of 175 Db with the motor off.
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