Due to the need for space in the back of my truck, I am forced to downsize. Currently I have 2 fi bl 18's installed.

What should I do?

[scenario 1]

I have 2 fi bl 12's that I purchased along with the 18's and haven't touched them yet. So I would just make a box for them and put it in.

[scenario 2]

I would remove 1 18 and build a new box

[scenario 3]

I would sell both of my 18 inch bl's and buy a single 18 inch BTL and use it.

Which way would be the loudest? Subs up, port back. Sundown audio 3kd.

So the main question would be, will I still get the lows with 12's that I get with 18's? And would an 18 inch BTL be louder than 2 12 inch BL's?

Help is appreciated

a box for an 18btl would be pretty big too, haha not much of a downsize.

It would be the minimum 5 ft ^3 I am currently stuck with a 12 foot ^3 box.

Edited March 17, 200916 yr by holley2346

i think you just answered your own question, if you love it loud id go with the 18 btl. louder than 2 12 bl. but if you have the 2 bl then why not use those on that sundown 3k

No you won't get the same low's with 12's that you do with 18's. I'd go with 12's just because of my own personal preference.

No you won't get the same low's with 12's that you do with 18's. I'd go with 12's just because of my own personal preference.

Says who!?

No you won't get the same low's with 12's that you do with 18's. I'd go with 12's just because of my own personal preference.

Says who!?

From the sub's ive heard generally the larger the diameter the lower the sound

tune the box lower. thats all. I say go with the two 12" BLs.

No you won't get the same low's with 12's that you do with 18's. I'd go with 12's just because of my own personal preference.

Says who!?

From the sub's ive heard generally the larger the diameter the lower the sound

It just varies from install to install. The reason you think that is probably because the larger woofer was louder, but the actual sound from the driver is more box dependent than anything.

No you won't get the same low's with 12's that you do with 18's. I'd go with 12's just because of my own personal preference.

Says who!?

From the sub's ive heard generally the larger the diameter the lower the sound

It just varies from install to install. The reason you think that is probably because the larger woofer was louder, but the actual sound from the driver is more box dependent than anything.

So a 10" Sub can play as low as an 18" if the installs are the same?

I am considering 2 btl 12's at .5 as well.

Which way is the best route to go, I vote to hear from bigjon.

I just want lowwwww and I don't want a lot of space taken up. I wouldn't want just 1 bl, that would be a waste of a 3kd.( 5 cubic feet is low compared to existing. )

Edited March 17, 200916 yr by holley2346

if you build a nice box those 2 12 bls it will be good on that amp 1500rms each, just be easy on the gain.

i know those 3ks put out some crazy power.