Feel the earth-shaking bass your subwoofers are capable of. Real easy to use. Includes hundreds of subwoofer test tones, ultra low subwoofer frequencies, and subsonic frequences. Incredible sound!

- Make your own ultra low bass tracks with built-in deep bass sequencer
- Includes frequency test tone generator
- Play clear notes down to as low as an earth shaking 10hz
- Can now play music from your library and add intense deep bass notes to your songs
- Low bass drops
- Play sounds in 1 hz increments
- Midrange and High test tones included
- You can control the fade out for boom, or play the notes without any fadeout for pure tones
- Connect to your home theater, car stereo or any speaker system via Bluetooth (the same way you play music via Bluetooth), or connect a wire from your device to the auxiliary input of your car stereo, or via inputs on your crossover or amplifier.

What’s New


New social media screens, upload pics of your subs!
Dozens of new test tones added for testing subwoofers, amps, crossovers and more

App Privacy

The developer, John Valentina, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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