iPhone Screenshots


The DD Toolbox includes several useful tools for setting up and analyzing high performance car audio systems. We understand installers have a lot going on while setting up a system, so the DD Toolbox layout was designed with this in mind. A DD Toolbox feature not found in similar apps is the ability to easily swipe between tools allowing fast and convenient use of the multiple tools. This allows you to do things like use the tone generator while punching numbers into the wattage calculator, all the while illuminating your trunk with the flashlight!

DD Toolbox features:

-Wattage/ Ohm's Law Calculator for determining your systems actual output wattage and impedance

-Tone generator that ranges from 20Hz to 20kHz

-DD Box calculator which uses DD's exclusive enclosure design theory to make a recommendation for maximum bass in your given enclosure space

-Flashlight function that's able to be toggled on/off from any screen.

What’s New

Version 1.1.4

- Fix bug with international number formats

Ratings and Reviews

3.4 out of 5
5 Ratings

5 Ratings

BAD@$$ ,

Good app

This is a nice app for figuring out the voltage to set your amp. The box size is nice just pick you music style 1st or the screen locks up. That’s why I give it 4 stars and not 5

Jr7210 ,

Good app

I use the tone generator a lot when I'm setting my amp gains. I can't use the box calculator on my phone now. iPhone 5s

Ryan Eli ,

Please update

I try to enter my info in the box building part but the keypad comes up and I can’t hit calculate because the keypad is in the way and there’s nothing I can do


Resonance, Inc US
5 MB

Requires iOS 6.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© 2013 Resonance, Inc


  • Family Sharing

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

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