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Old 12-03-2014, 09:28 AM
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Default 4th order trunk build

Ran my etho 15s for a while but wanted to build a 4th order.The 15s were amazing. It had been a while since iver heard what id consider sound quality from a sub. I ran them ported first but the box was tuned way to high. So i blocked off my port cutouts and ran sealed. I was blown away and knew i needed to build a 4th. No way i could fit them without sacrificing airspace i decided to build to 12s.

Previous build pic, etho 15s ported

Cut them down and built my 12s



Had alot of time in the box build since it was built in the trunk piece by piece, double and triple layered in most places with 2x4 backing


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Old 12-03-2014, 09:28 AM
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First loading wall was a flop, by the time i got the tuning down i had no port area metered like a 45


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Last edited by 97maxima; 12-03-2014 at 09:42 AM.
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Old 12-03-2014, 09:46 AM
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Tore out the loading wall and move it forward to build a port plate.


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Last edited by 97maxima; 12-03-2014 at 09:52 AM.
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Old 12-03-2014, 09:52 AM
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Vid of the 15s sealed

Average run on the tl with the 4th
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Old 12-03-2014, 09:56 AM
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So far it seems to like 44hz sealed and 45hz open. will take some more testing and caps to help my voltage. Heavy music runs and i get down to 12 flat. Once i swap my 2 batts out for 6 banks i should gain big

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Sealed on the dash

Kick
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Old 12-03-2014, 10:13 AM
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love it...u clamp your amp??...ive got a second one in the future coming my way for my 6 12s and these ethos look like they might be the winner for what i run too
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Old 12-03-2014, 10:26 AM
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Quote:
Originally Posted by fyerbyrd22 View Post
love it...u clamp your amp??...ive got a second one in the future coming my way for my 6 12s and these ethos look like they might be the winner for what i run too
I have not clamped it, i love the Taramps despite the bad name people try to give them. I was skeptical of Brazilian built amps for years but all that has changed. We run them in 3 other builds of mine and more to come. I couldnt be happier with the Ethos. Ive ran so many spl based subs over the years and have finally found the best mix of a daily/burp setup.
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Old 12-03-2014, 10:31 AM
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Fu(k bro you did a great job. 4th order FTW...
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Old 12-03-2014, 10:33 AM
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Fu(k bro you did a great job. 4th order FTW...
Thanks, i have alot left in it. After some modding and the new Ethos ill see a nice increase.
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Old 12-03-2014, 10:36 AM
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Quote:
Originally Posted by 97maxima View Post
I have not clamped it, i love the Taramps despite the bad name people try to give them. I was skeptical of Brazilian built amps for years but all that has changed. We run them in 3 other builds of mine and more to come. I couldnt be happier with the Ethos. Ive ran so many spl based subs over the years and have finally found the best mix of a daily/burp setup.
are they really like 60+lbs??...i saw it on the site and wasnt sure if it was a typo...60lbs for a "1800w rms driver" is nuts
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