Bigger ported or tunder higher ported?

[Terranova 10+ year member]

Next month is a competition here locally. I would like to enter my vehicle, I have 1 12" Fi Q off a DPX11551 (1600rms) in a 2.5cuft @ 32hz. My friend has a 12" L7 off 1600 rms but in a 4cuft box @ 48 hz. His is much louder than mine I think but it sounds like shit and is almost unbearable. I'm wondering if making a larger box tuned higher would give me a better chance at this competition. Should I make a new box or leave it at what im at now?

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[skmfkr 5,000+ posts]

tuning higher will help you, but no reason to make the box any bigger. what vehicle does he have

 

[Terranova 10+ year member]

tuning higher will help you, but no reason to make the box any bigger. what vehicle does he have

He has a 91 Dodge Stealth. Making the box bigger wouldn't make a difference huh?

 

[skmfkr 5,000+ posts]

so isnt his car a hatchback? thats one reason its louder, and no 2.5cf is the max you should use for a 12. especially if you have 1600w on it. you would probly gain more if you did 2cf at like 45hz. you might gain a little going to a Fi BL and probly wont even sound much different in the SQ

 

[Terranova 10+ year member]

so isnt his car a hatchback? thats one reason its louder, and no 2.5cf is the max you should use for a 12. especially if you have 1600w on it. you would probably gain more if you did 2cf at like 45hz. you might gain a little going to a Fi BL and probably wont even sound much different in the SQ

Yes his car is a hatch back.

That's what I was honestly considering, selling my current Q and getting a 12" BL fully loaded. So 2cuft @ 45hz would suffice? I really like the power I get with my lows though, White Girl by Jeezy is phenomenal in my truck.

I don't care for SQ as much as SPL though.

 

[skmfkr 5,000+ posts]

well if thats just a comp box then like upper 40s would be good, but for sql i would do upper 30s, how long has he had his L7 in 4cf? probly why it sounds like sh*t and probly wont laste much longer

 

[Terranova 10+ year member]

well if thats just a comp box then like upper 40s would be good, but for sql i would do upper 30s, how long has he had his L7 in 4cf? probly why it sounds like sh*t and probly wont laste much longer

He's had his L7 in that box since he bought it. He has actually won quite a few competitions here and in Sacramento. I would like to make a competition box just to see how it does. lol

 

[Terranova 10+ year member]

http://www.youtube.com/watch?v=bLAA7yLrPuo&feature=channel_page

here are some vids of his sub, sounds horrible. Pretty much sounds like that in person as well, but it wins him competitions believe it or not //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif

 

[skmfkr 5,000+ posts]

whats numbers does he do? its barely moving

 

[DonH 5,000+ posts]

whats numbers does he do? its barely moving

THATS WHAT IM SAYING!

i know my lil vegas could blow that thing out from the looks of that vid! no way its seeing 1600 rms!!!

 

[SPLluminator 10+ year member]

Typically a bigger box will be louder. But for that much power on a FI Q it wouldnt do anything. I would do as suggested above. 2ft^3 at 45hz or so.

 

[DonH 5,000+ posts]

x3 on either snagging a bl fully loaded or make n a smaller box to 2^3 at 45hz. just use that box for lil comps and such then put the box you have now back in. its as simple as that

 

[skmfkr 5,000+ posts]

i would do 2cF and 2 4" aeros 14.8" long would tune you to 45hz and then get a 4" port plug from edesignaudio.com and plug one and it tunes to about 32hz for daily. thats what i do but ive got 3 4" aeros

http://www.edesignaudio.com/index.php?cPath=1_76_101 heres the link for all that you need

 

[01 S 10 10+ year member]

sorry, he is NOT putting 1600w to that L7, more like 300-400w.

his setup shouldnt do more than mid 130's by looking at that video.

do you have any vids?