Online Tone Generator

The 60 second online subwoofer test. It's free, simple and no sign up required. How low can you go?

Our advanced subwoofer test tone generator provides professional-grade audio frequencies to evaluate your bass response performance. The 60-second frequency sweep begins at 150Hz and gradually descends to an ultra-low 1Hz, allowing you to thoroughly test your subwoofer's capabilities across its entire range.

Click the play button to begin the test.

The current frequency is:
 

Hertz

This tool is ideal for:

  • Testing frequency response of home theater subwoofers
  • Calibrating car audio systems for optimal bass performance
  • Identifying rattles or resonances in your listening environment
  • Comparing different subwoofer models and configurations
For more precise testing, we've included individual test tones at 20Hz intervals from 20Hz to 100Hz. These pure sine waves help you pinpoint specific frequency ranges where your subwoofer excels or needs adjustment. All tones are available for instant playback or download in high-quality WAV format. Pro tip: For best results, play these test tones at moderate volume and listen for smooth transitions without distortion or sudden volume changes. Share your test results and experiences in the comments below!

Additional Test Tones
20Hz
30Hz
40Hz
50Hz
60Hz
70Hz
80Hz
90Hz
100Hz
Click here to download all low frequency test tones.