box size for a 15 Bl

[Conquest4Life 0]

I just ordered a 15 bl today and im still pondering on what size box to get..do i go for a 3.0 cub box or a 4.0 cub box

any help would be greatly appreciated

[bodybuilding90 0]

it all depends on what you can fit, but fi recommends 2.8-4.0 cu.ft. , i would go for 3.5cu.ft tuned at 32hz,that would sound real nice,and what are you powering it with??

[Conquest4Life 0]

Im gonna power it with a RF tb1500bd at 1 ohm...i measued it in my car and the 4.0 cub box is too deep and the 3.0 seems to fit perfectly with my suv...if i put the 4.0 in it would take up lot of room and it would be around 10 to 11 inches away from the back of the my suv

[bodybuilding90 0]

Im gonna power it with a RF tb1500bd at 1 ohm...i measued it in my car and the 4.0 cub box is too deep and the 3.0 seems to fit perfectly with my suv...if i put the 4.0 in it would take up lot of room and it would be around 10 to 11 inches away from the back of the my suv

thats a nice amp, any electrical upgrades (big3, batts,alternator), but can you fit a 3.5cu.ft?

[Conquest4Life 0]

ill probly upgrade the battery and alt depending on the cost...i need a new head unit despratley but i have to get it custom put in..and i havnt found a good 3.5 cub box online but mebe the shop im going to tomorrow will have one..

[bodybuilding90 0]

ill probly upgrade the battery and alt depending on the cost...i need a new head unit despratley but i have to get it custom put in..and i havnt found a good 3.5 cub box online but mebe the shop im going to tomorrow will have one..

do not buy a prefab, it will sound like ish....build your own or have someone custom build it for you

and if you need a headunit... check out the new eclipses on sonicelectronix.com, the give you all the instalation for free like crutchfield... these are some of the best units out right now

[Conquest4Life 0]

do any shops custom build boxes or is there a website that actual functions that i can go to..and in terms of building how long does that actually take..

[yjbliz 0]

try this ( www.reaudio.com/speaker_box/LPort_Box_Calc.html )

[Conquest4Life 0]

thanks man

[Conquest4Life 0]

Box width: 35

Box Height: 17

Box Top Depth: 16.5

Box Bottom Depth: 16.5

Wood thickness: 0.75

Square Port height: 14.5

Square port width: 4

Square port length 1: 11.75

Square port length 2: 8

Total port length: 26.5

it came out to 3.548

is 4 a big enough port for it or should it be 5?

[NDMstang65 403]

Would that be before or after your port displacement?

Thanks!

-Nick

[Fi Car Audio 64]

Next issue is the subsonic filter being preset on that amp to 28Hz and a shallow 12dB per octave... fine if you are tuned 30 Hz or lower, but I would recommend adding more filtering if tuned any higher. Playing freqs below tuning is a bad thing

We recommend 12-16 sqin of port per cuft. With 4X14.5 you are just a little over 16" which is plenty good.

Thanks,

Scott

[Conquest4Life 0]

Would that be before or after your port displacement?

Thanks!

-Nick

whats port displacement exactly

[NDMstang65 403]

The volume the port itself takes up, i'm not quite sure how that calculator works, as i've never used it.

But if you take a port that is 10" tall, 4" wide, and 10" deep, it has a volumetric displacement of .23 cubic feet (10 x 10 x 4 divided by 1728)

Thanks!

-Nick

[Conquest4Life 0]

The volume the port itself takes up, i'm not quite sure how that calculator works, as i've never used it.

But if you take a port that is 10" tall, 4" wide, and 10" deep, it has a volumetric displacement of .23 cubic feet (10 x 10 x 4 divided by 1728)

Thanks!

-Nick

o gotch ya this thing i used gave me that but i didnt put it in...

Square port volume displaced: 1657.25