I have 2 12 inch JLWv1 in a DualBandPassBox (like this one http://www.electronixwarehouse.com/g...bp10-12-sp.GIF )

It bumps real nice but i want the same boom heard on the outside rather than just the inside of the car.
What would be some possible things to do? New Bigger Box? Maybe W6s?

Any Ideas

 

dynamat....also get rid of the bandpass box and get a ported box

 

smh..dudes like you give us car audio guys a bad name.

Put them in a better box..not that bandpass bs

 

lol.. in a nicer way.. bandpass boxes serve no real purpose. you might as well cut a hole in a sealed box and you'll the same result.. if i'm not mistaken, bandpass boxes arent really tuned, so just get a "Real" ported box and put them in there. JLWv1's arent bad. just make sure the box is tuned to the required hertz.

 

That will do the exact opposite of what he wants

Truth. Oh, and so is the better box thing.

If you just want other people to hear how awesome your bass is when you're driving, I have an even better way to get your subs heard outside the car!

Take all your door panels off. Leave them off. Take out any stock sound deadening. Get rid of all the carpet in the trunk and the sound dampening on the trunk floor, plus the spare tire. Fold the rear seats down and open all your windows....or better yet just get rid of the windows (they block sound from out/in your car).

Hope this helps

If you aren't one of those jerk offs who sit at red lights with their bass way up and their stupid car rattling louder than the bass.....who wants to use at a cookout or something...

Get a better box, and just open your trunk.

 

come on man thats what i want just give a white boy a break shoot

 

Dynamat your trunk

 

Sorry, but I couldn't resist the sarcasm

You should sound deaden your trunk, but I wouldn't use dynamat. I'd use either Second Skin or Sound deadener showdown.com ( and in fact I did use both of these)

http://sounddeadenershowdown.com/

http://secondskinaudio.com/

 

A pre-built band-pass box is only good if it is built for a particular speaker, there is no, [or very little] room for error, in both net box volume and port volume, not very good for high SPLs, but good to get relatively high SPL from lower watt systems.

The JL Audio 12W1v2 subs work best in either sealed or slot ported cabinets...

A well built slot port box, [for 2 subs] with a 500W RMS, [no more then 600W RMS] amp driving them will be the loudest.
Box construction is critical to SQ, [F3 point] and SPL, the better the box, the better the bass if they are 12W1, [12 inch JLW1v1] http://mobile.jlaudio.com/pdfs/12W1_BDS.pdf, note, the speaker continuous power handeling is only 125W, a 250W-300W RMS amp is needed. 94