Enclosure for Fi BTL 15 in BMW 320dt

[faezich 0]

Hi,

i'm Patrick from Germany and i just ordered a Fi BTL 15 with Cooling and HiXM Coil for daily driver. The BTL replaces my old RE SX 15 wich i operated in a aprox. 4,7 cubes box, tuned to 35 Hz.... My problem now is that i don't know how to build a enclosure for the BTL because i usually calculated everything with Win ISD but this doesnt work with the btls TSP'S...

Can you help me or say what i have to build.

Max dimentions are:

width: 93 cm or 36,61 inch

height: 45 cm or 17.72 inch

depth: more than 100cm or 40 inch

I'm running it with a RF T20001bd and kinetik batts.. I hear lots of young jeezy and gucci mane...

My Peak with the SX was 141,9 with 45hz on Termlab, hope to get a bit more with the BTL..

Thank you for any response, i will appreciate..

[johnecon2001 82]

O look! Stickies right above where you posted

http://www.soundsolutionsaudio.com/forum/i...?showtopic=7153

[faezich 0]

Oh sry,

i'm new here in this forum...

It says:

BTL 15 – Ported box we recommend using 3-5 cubic feet @ 30-35Hz. Again use 12-16 square inches of vent area per cubic foot of volume.

So if i build a box with 5 cubic foot and 16 square inches of vent area per cube its all good?? How long has the port to be for 33 Hz?

Is there any calculation software that shows my a cutsheet etc. and works with woofers like the btl? because win isd doesnt!

Edited January 12, 2009 by faezich

[johnecon2001 82]

http://reaudio.com/speaker_box/LPort_Box_Calc.html

[ABXX49 20]

I like to build my enclosures with Google Sketchup. It gives you a 3D view and you can get your cuts off of that.

[BILTD 60]

Hi Patrick,

Thanks for your order.

Can you let us know what sort of working range you need for the sub? 25-65hz? 30-65hz?

I like BTL15s in 4.5-5cubes tuned from 28-32hz.

[faezich 0]

Hi Mr BladeIce

Thank you for your great email contact, it's worth posting this here because of your outstanding friendlness

Can you let us know what sort of working range you need for the sub? 25-65hz? 30-65hz?

I like BTL15s in 4.5-5cubes tuned from 28-32hz.

Yeah that sounds great!!! I'd like to hit really low

Can we perhabs discuss the enclosure build by email?? I want the box finished before the BTL arrives...

[BILTD 60]

No problem send us an e-mail and i'll have a closer look for you.

[faezich 0]

Is something like this ok or is it done completly wrong?

[faezich 0]

bump!

[BILTD 60]

Think I sent you a design

[faezich 0]

true, wood's for your design already ordered... gonna build it tomorrow...

But i don't understand the part with the vent aera.. I wasn't able to calculate it with your box, but trust you, shure!!

Calculated with the RE Box Calc the Port is much bigger, but i really dont know why :-)

Perhabs im too stupid for this,too ^

[nick_19 1]

true, wood's for your design already ordered... gonna build it tomorrow...

But i don't understand the part with the vent aera.. I wasn't able to calculate it with your box, but trust you, shure!!

Calculated with the RE Box Calc the Port is much bigger, but i really dont know why :-)

Perhabs im too stupid for this,too ^

Don't use your design off of RE... You have the bottom and top depth different... from the side the box would look like |_\

You can trust BladeIce's design!

Vent area is the height*width of the port to get port area so that you can avoid port noise...

Edited January 15, 2009 by nick_19

[faezich 0]

Nice!

OK, thanks a lot for all your help! I'll post perhabs some pixx when the sub arrives and of thebuilt.... Can't wait to hold my littl BTL in my hands :-)

Nice Forum after all, im going to visit it now and then!!

EDIT: Great respect for BladeIce!! Very nice and friendly contact, AND HELPFUL! Thank you for the enclosure design!!

Edited January 15, 2009 by faezich

[lee 2]

Keep us updated. Id like to see how it comes out

[coobies5 43]

that btl aint little....

[faezich 0]

Yeah, i know!! But according to my local car hifi Equipment dealer, i won't have any chance to beat the 141,9 of the re sx 15 (old version) .. After i stopped laughing on this fool i made a little bet ;-) hope that i'm gonna Kick his azz :-)

[BILTD 60]

Remember the vent goes on the front side of the box, toward the tailgate. The dimensions for the vent also happens to be the internal height of the enclosure, so its a straight forward slot port with a 90 deg bend