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Really Confused


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So my buddy put an alpine type R 15 in a sealed box, and its hitting way lower than my 10^ft box tuned to 35 hz with two 18s in it, similar to the dc lvl 4's. Granted, im giving them 1k a piece but they rms at 2500, but what's the deal here ? I mean, I THOUGHT 35hz was fairly low. But that sealed box he has his subs in is giving incredible bass response. Now, I didn't build the box the 18s are in, but it looks like it has enough port area ? I'll post pictures when I get to a computer, but any idea what it would be ??

The best you can do is giving the external dimensions of the box and the dimensions of the box and the vehicle this is in. Also you should check your subsonic filter so that is not tuned to high and the incoming signal not to be hi passed or equalized etc.

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Sorry, pics will be up later today. My buddy has my tape measurer and doesn't get off till 7. -_-

Current setup in my 96 Hoe

Hu - Pioneer DEH-80prs.

Amps - (4) Crossfire C5 1700D's, MTX Thunder 5604(mids), PPI Art 300.2 (tweets)

Batts - 4 91ah rear batts, 50ah batt up front.

Subs - 2 Crossfire XSv2 18's

Alt - Singer 330A

Front stage - Random JL & Eclipse mids, Eclipse tweets

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1z3c68l.jpg

Current setup in my 96 Hoe

Hu - Pioneer DEH-80prs.

Amps - (4) Crossfire C5 1700D's, MTX Thunder 5604(mids), PPI Art 300.2 (tweets)

Batts - 4 91ah rear batts, 50ah batt up front.

Subs - 2 Crossfire XSv2 18's

Alt - Singer 330A

Front stage - Random JL & Eclipse mids, Eclipse tweets

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The sub in the picture above is sitting next to a 36 ounce water. Bigger than an arizona can.

2yyoao1.jpg

14pw75.jpg

3305i0z.jpg

2d18uvt.jpg

Sorry that one is sideways.

But box dimensions are

21" deep

40" wide

26" tall

Port dimensions are,

13" wide

10" tall

12" deep.

Current setup in my 96 Hoe

Hu - Pioneer DEH-80prs.

Amps - (4) Crossfire C5 1700D's, MTX Thunder 5604(mids), PPI Art 300.2 (tweets)

Batts - 4 91ah rear batts, 50ah batt up front.

Subs - 2 Crossfire XSv2 18's

Alt - Singer 330A

Front stage - Random JL & Eclipse mids, Eclipse tweets

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Ah. So a small box may be my issue ? I mean would that really effect it to where It wouldn't play the lows that well ? Like, on the song Put On, the first and second bass note are loud, te second being te loudest, but the third is kinda there and the fourth really isn't there.

And the way the box sits now, the port is about .. 6-8 inches from the hatch. Id rather it not be any taller, and it can't really be any wider. Don't I need a certain amount of space between the port and hatch ?

Current setup in my 96 Hoe

Hu - Pioneer DEH-80prs.

Amps - (4) Crossfire C5 1700D's, MTX Thunder 5604(mids), PPI Art 300.2 (tweets)

Batts - 4 91ah rear batts, 50ah batt up front.

Subs - 2 Crossfire XSv2 18's

Alt - Singer 330A

Front stage - Random JL & Eclipse mids, Eclipse tweets

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4 to 5 inches it how mine is.. the reason i went higher was to be able to use double baffle on all walls and still have enough cubic feet

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