A scene from Finding Nemo at around 1:18.00, Darla was tapping on the fish tank and made some brain numbing and earth moving bass, I haven't measure how low it hit in my room but it's in the low 20s to high teens range. It sound sorta like THOOONG THOOONG THOOONG THOOONG with my SVS PB1. :-)

Warning: weak ass woofer such as Bose's Acoustimass bass module need not apply.