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billyrodriguez
05-11-2007, 09:30 AM
I will most likely buy a BTL 18 in the next few weeks. I was thinking 33-34 hz (its for a daily)My max dimensions are 37in width, 22h, 24in depth(can go more if absolutely necessary). Not sure on port area, but was thinking in the ballpark of 100-120.

darren700
05-11-2007, 09:36 AM
why are you getting rid of the audioque?

bamaboy
05-11-2007, 09:44 AM
thats about 9.5cubes gross for the deminsions you gave

what are you looking for? low bass, a good mix, SPL machine?

ive got mine in 6cubes, but thats about as big as i could go before the box started getting even more stupid big

the lows arnt the best, but they are in small box tuned to 35hz and the main part is my vehicle, if the subs were firing back it would be alot better lows

rpfuror
05-11-2007, 10:45 AM
Here is what I would do if I had those dimensions to work with...

Net Volume: 6.49 cu/ft
Tuning Freq: 32.95 Hz
Port Area: 103.69 sq/in

http://i135.photobucket.com/albums/q145/rpfuror/Box%20Design/btl_6.jpg

SHiZNiLTi
05-11-2007, 11:31 AM
rpfuror, your allways quick to get a design out there :D

billyrodriguez - what type of vehicle is this going in. This sounds like you have a 2 door blazer and you want to keep your back seats because those dimensions are almost exactly what I have to work with.

I'm looking to build a box for (2) 15's that's 37w x 23h x 24d in the next weekend. It looks close to rpfuror's design, but I made it without the L port with my design it's just a straight port with 107sq.in. of port area. Watch for it next weekend.

For my Fully Loaded 18" BTL I had it in 6.8 cubes @ 31hz with 100sq.in. of port and it was hella loud!

It was 37w x 19h x 26d...

http://img224.imageshack.us/img224/3402/workarea6as.jpg

http://img224.imageshack.us/img224/2708/19high2wh.jpg

http://img224.imageshack.us/img224/2601/26long6cu.jpg

http://img224.imageshack.us/img224/8940/37long5ri.jpg

http://img261.imageshack.us/img261/8438/btl5no3.jpg

Here's a good pic to show how big this box really is, I actaully laid it down flat in my blazer, I just had it upright so I could mount the sub....

http://img479.imageshack.us/img479/539/btlout6xa2.jpg

billyrodriguez, if you want the cutout sheet for either of these designs just pm me ill them with you.

rpfuror
05-11-2007, 11:44 AM
man that box you built is pretty close to the design above... looks NICE!:)

TheFiverMan
05-11-2007, 11:48 AM
im gettin a 18" BTL soon to...like the design u did..

billyrodriguez
05-11-2007, 01:40 PM
I would like a good mix of sound. It is going in a 93 ford escort wagon. And im not getting rid of the AQ, I just want to try something new.

SHiZNiLTi
05-11-2007, 03:31 PM
I would like a good mix of sound. It is going in a 93 ford escort wagon. And im not getting rid of the AQ, I just want to try something new.
So u probably want sub up port back right?

The box that I built for the BTL was loud but didnt bring out the lows around the 30-32hz range that well. It tended to sound the best at the 36-40hz range, those notes sounded great and got very loud at that range.

Maybee try using flared aero ports. Have you ever considered that?

I would do sub up and ports firing to the side, I bet you get some good sq with this setup.

(6) 4" aero ports @ 22" long will get your 7cuft box (37x22x24) tuned at 34hz with 75sq.in. of port area.

http://www.partsexpress.com/images/268-350m.jpg

rpfuror
05-11-2007, 03:43 PM
the fs is to high on those driver to get really "defined" note that low.... it will be loud just based on the size of the driver just not well defined lower then the fs value.

fitbikeco129
02-28-2011, 02:14 PM
do you recommend the sub up and port back or both back in a 2 door blazer?

Kangaroux
02-28-2011, 02:23 PM
do you recommend the sub up and port back or both back in a 2 door blazer?

congratulations on a 4 year bump