Check Your Subwoofer. Ultra low-frequency sweep sound 20-80 Hertz (Exponential Scale)

1 minute short and simple audio test. Low frequency sound to test the bass/subwoofer. Sine Waveform Level: -3dB Range: 20 - 80 Hertz (log scale) Download Audio: https://onlinesound.net/download/audi... Online Bass Generator: https://onlinesound.net/bass-tone-gen... #bass #subwoofer #frequency