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DOOR FLEX! 37hz sealed spl run! Fi FTW
MrBass226 spl run sealed on the dash
6 pickard 15"s in a sealed box
2 CL-AUDIO Hater 255 15" (2 15s 157db+ 37hz) Flexing
Strong flex peel off the glass on *40Hz*
Re Audio Tune at 37 Hz loud at distance
I'm Da Man - 37Hz - Roof Flex
Single 12" sub 151.9db SPL FTW.
37Hz bottle trick
Extreme Wiper flex FROM BASS! Fi FTW
SPL MAX by orion
Im back!! Hdc 3 10s 3cuft tuned 37hz 145.6 db