Build a Cheap Cardboard Subwoofer! - SYSTM

www.youtube.com Don't spend hundreds of dollars on a sub-woofer! We show you how to build your very own high quality sealed subwoofer in just a few minutes. It's all about Sonotube, the toughest cardboard you'll ever meet! See our latest episodes! youtube.com Never Miss New Shows - Subscribe for Free! www.youtube.com Twitter twitter.com Facebook facebook.com Watch some of our other shows! youtube.com youtube.com youtube.com youtube.com youtube.com

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