19 Nov, 08:51

How to make a full convertible hit hard

So I have a 2001 Jeep Wrangler hardtop convertible that I’m trying to build a box for that would sound good with the top off. My customer wants to go ported but as soon as we remove the top the bass is gone. Is there a certain way I should be facing both t


14 Nov, 21:11

Port dimension calculation query

About to cut dual slot ports into 19l boxes using calculation of speakerboxlite app.  Noticed JLaudio say: Multiple Ports There are two widely used methods for calculating multiple ports for a single chamber. Only one method is correct, but, unfortunately,


14 Nov, 08:09

4th order

I'm trying to build a 4th order wall for a 2001 Tahoe and 2 15 inch crystal audio solutions  cs6 15's im stuck i gave made a sealed box but a can't seem to make a 4th order wall configuration any help 


9 Nov, 11:44

Cone Displacement

Dear all When i'm modelling an Dayton Audio RSS390HF-4 in speakerboxlite , i doesn't reach the maximal cone displacement. Doing this in WINISD i have allways the problem with the same datas that the cone displacment going out of limits, which is normal wit


4 Oct, 02:27

how do i move a port?

So once I place the port in the 3d rendering how do I move it to another place on the box, it places it on the edge but I need it to be in the center between the speakers per the customers request.


3 Oct, 20:32

L-Port / Labyrinth

What is the difference between L-Port and Labyrinth


2 Oct, 17:04

Not sure how to use this site box build

Have 2 12” dvc 4 ohm type r’s wired to 1 ohm wanting to built a custom box for the back of a 2012 Chevy traverse that will be in car and audio shows I have a Hifonics BXX2000.1D AMPLIFIER That will be running these any help or pointers would be appreciated


20 Sep, 00:32

Subwoofer box for audiopipe txx-bdc4-6

I was wondering if someone could make me a band pass subwoofer box for my subwoofer one chamber 65hz and the othere 45 hz or the best you can get 


17 Sep, 06:05

peerless xxls 12" 830844

i have a peerless xxls 12" 830844 and i need a decent box design for this sub. i am new to this program and i am looking for some good low bass that i can still feel, i maybe asking to much from this sub but that is  just what i want. is anyone able to com


14 Sep, 14:00

Ports length and how many

I’m looking at a wall build. For 2 nsv4 18” dual 1 subs. Max dimensions are H-43. D-19. L-57. Would like aero port design for a box.  Please help the tuning of it for ports and length. 28-40 hz is my range. 


14 Sep, 05:37

6th order enclosure serie of parralel?

The 6th order enclosures are the serie of parralel designs? Thinking of building a serie 6th order for a single 15" ascendant audio mayhem D1 


27 Aug, 21:10

Box design

I got 2 sundown X10 V2D4 and need a simple dual vented enclosure @ 38 Hz and 1.5 volume that's going into a Yukon so I got the space of it matters cuz I'm looking for the low bass sound of anyone can shoot me a design. Thank u 4 ur time


21 Aug, 09:41

Please help me

Please, i dont have tons of cash But i do have 3 4/8 pieces of 3/4 mdf and any tool i will need, i need a box design basic is best for 2 15” harmony ha-ca152 dvc 2 ohm subs 1400rms each i want the vnt on bottom on the front with thesubs, subs mounted baske


9 Aug, 03:07


Okay im experienced box builder, but totally stumped on this one. Just happens to be my personal set up. I own 2 dd2512c and I am wanting max flat response. And it's recommending a sealed enclosed which the manufacturer does not at all. Vented 2.5 I have l


17 Jul, 05:08

Box design

I'm needing help building a box for a sundown sa 8v 1.5 (after my sa 8v2 d2 passed away) and I'm having a hard time getting the box tuning right. Tried using the calculator here but dont know how to view the plans/ cut documents. Any help is appreciated pl