$4.99
The 20 Hz Heavy Bass Sine Wave is a very low-frequency sound that requires good speakers or headphones for an immersive listening experience.
The 20 Hz frequency is so low that many listeners will not hear this heavy bass sine wave. Very good speakers, subwoofers, or headphones are required to hear it. If you can hear it, you’re in for an immersive treat. This is also a good sound for a subwoofer test.
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