DIY Line Array PA System using Surround Sound Speakers

This is a small project PA system that I built a couple of years ago from two matching used surround sound systems. I saw an expensive Bose portable line array and thought that I could build something similar using inexpensive available parts. I built my own power amp (180 Watts sub-woofers, 100 Watts per left/right side) but a better idea would be to use the amplifiers that come with the surround systems. Each tower has 3 speakers (one shown, two hidden). Each column has 4 towers - 12 speakers per column. Two columns - 24 speakers in total plus 2 subwoofers. Sounded pretty nice.
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