8' Tall, Stereo Integrity HT15D2 Tapped Horn Sub.....

Stereo Integrity HT15D2 sub in an 8' tall Tapped Horn enclosure, powered by a 500W BASH amp.
Sharp eyed viewers will notice the whole 240+ lb sub moving itself on its casters at 25 seconds.
They will also notice I'm using my Federal jury summons as the demo paper. (sigh)
Usually, the following disclaimer (or something like it) is reserved for car audio. Any distortion you hear is objects rattling, including windows, mini-blinds, AC ducts, computer cases, the paper flopping about, or microphone overload and kittens. It's not the sub distorting....the amp I'm using for the demo can only provide 33% of the power needed to hit xmech for this driver.