Subwoofer school’s in session! You’ve now enrolled into KICKER U, where you have instant access to a toolbox of mobile-audio installation knowledge. Let KICKER U help you design and build custom enclosures and assist with wiring subwoofers.

This version contains calculators for converting your port from round to slot or vice versa, calculate the tuning frequency of your existing enclosure as well as the ability to enter and save Thiele-Small parameters to create boxes for any driver you own along with many other features.

What’s New

Version 3.1.6

- Bug Fixes

Ratings and Reviews

3.4 out of 5
11 Ratings

11 Ratings

DaynjaRUSS ,

4 stars for a great tool/app, but...

I love this app for its ability to calculate everything I need for kicker enclosures. The only problem I am having is that the app shuts down whenever I try to save an enclosure. Am I doing it wrong?

Red Death 78 ,

Could use a lot of improvements

Great that you can add in other woofer specs but crappy that you can't calculate real boxes. I enter in a JL 10w1 and choose build a box and it tells me to make one 33" wide for one 10" woofer. I change that to Custom box and still no way to customize the box.
It should allow you to enter in cubic size you want as well as 1 or more dimensions and then IT calculates the other dimensions. The way it is you have to enter in all box dimensions, kinda pointless without that option.

Baseball 4 Lyfe ,

Very Helpful

I use this app all the time for everything. I just made a box for an L5 and it gives you a cut list so you don't have to draw it up. It shows you everything you need to know and what to know. I would definitely buy this app if your into Car Audio!!


Stillwater Designs
86.9 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© 2010 Stillwater Designs Audio, Inc.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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