with a 15" L7 in a sealed box powered by a hifonics 1605...sittin on my back seat folded down...what do u guys think?

 

well for one, sealed box + l7 = box being blown apart. i advise you to take it out of that box. if you are to read the manual that comes with the L7 it will even say not recommended for sealed enclosures in bold print. and youll get more sound out of a ported box anyways from that sub. the only thing is itll have to be a very big box. a 15" L7 is supposed to have a 6 cubic foot box ported.

 

ive got it on a ported box now..3.4 cubes tuned at 25 hertz thats alot louder

 

cool. and i bet your ears tend to you know bleed every now and then.

 

try 4-5 cubes tuned to 32-35 hz, and build it in the rear, not in the back seat. THEN you'll be loud.

 

give me plans for a box and it will be done

 

I had a box with 2 15'' l7s in it in my back hatch and i took it out because you couldnt even sit in the car. The kool part was it was theft proof unless you had the hatch key. The hatch closed right ontop of it so even if they broke my window it still woulldnt come out.

 

i dont have the time to design a box being that i'm getting ready to move 2400 miles in a couple of weeks, but i could put you in touch with some extremely talented box builders who would do it for a small fee.

believe me, theres PLENTY of room in the rear. i ran 2 rl-p 12's in a ported box, 4.6 cubes tuned to 32 hz in my trans am, all behind the rear seat. jim85iroc has also build a ported box or two but i believe they were dual 12's as well. a single 15 shouldnt be any problem.

 

1meangta.. who are these talented box builders? and could they help me with some compvr's?


....sorry not trying to hijack your thread or anything

 

yeah........WHO! lol

 

o yeah...and i think im going to go to 2 12's instead of 1 15....suppose to be louder hahaa

 

Okay, so you have one 15" that hits 140.2 db and you want to increase the cone space with 2 12's and try to go LOUDER than 140??

WHY??

FYI........... you can find cheap hearing aids on ebay..............

 

dahhhh..so its louder than everyones in my town...and surrounding towns lol my car aint fast so i need somethin to brag about!

 

How about 143spl with a 2x125 watt amp??

 

share with me

 

Actually it was 149.5 running 2x Phoenix Gold MS2125, PG EQ215, PGTBA(The Balancing Act) Alpine Deck, 3 1 Farad Caps, Monster Cable Wire, 4 Boston Pro Series 10s in a ported enclosure, 4 Boston Pro 6.5, 4 Boston Pro 5.25, 4 Boston Pro tweeters (these are the original pro series in the black baskets) entire car done in dynamat. This was done in a weekend in February 1994 low humidity, ran the A/C for about 30 min before the ISACA event in Nashville.

Subs were wired around 0.5 ohm mono and the 6.5 and 5.25 were wired at 0.25 ohm stereo.

All in all, the system was pushing around 3000 watts total. This was competed in the 251-500 class.

 

im hittin 147 with one 12 inch l7 in streetbeat class... ported at 34hz

 

Can anyone tell me how you tune the port to a certain frequency? I'm not sure how that works out mathematically.

 

dirty... more info please and pics..and how and where you got the box set up..if its in your camaro of course.......if not..i dont really care haha

 

theres pics in the car audio section just go to my profile and look at threads i created.

 

How about 2 8" subs with 600 watts hitting 142.8

But not too bad at all... Good point though, those will pound like nuts in about 4.5 cubes ported to around 40hz.

I did a single L712 in a Elantra with 600 watts 3cuft ported at 38hz, didn't ever measure the spl, but ohh was it windy in that car

 

wtf is my problem then... it seems all that is alot louder than mine and you're hardly tryin.. whats the deal?!?!?

 

The car with the 8's had the trunk welded shut, and the entire box was built into the trunk and completely sealed, back seat removed...

It was a built SPL machine. Once you do that you can expect some pretty insane numbers.
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I should add here that the 2 8's didn't really make much bass so to speak of either, they were simply loud.

 

i see...but still lol