Online Tone Generator

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

This page contains a low frequency sweep and a series of tones for testing the response of subwoofers. Click the play button below to begin the test. You will hear a sine wave start at 150Hz and gradually decrease to 1Hz over the course of 60 seconds. We have also provided a series of continuous tones (compatible with Firefox 4 or later) to help you get the most out of your subwoofers. How well do your subs perform? Let us know in the comments section at the bottom of the page.

Click the play button to begin the test.

The current frequency is:
 

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