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Synther
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Joined: Fri Jul 10, 2015 5:57 am
YouTube Username: UtahSirens
Location: Utah
Contact: YouTube

Northrop Grumman Speaker Arrays

Sun Aug 22, 2021 8:32 am

An ATK plant just south of my town has probably 50 of these spread out every 1/4 mile or so. Does anyone know what they are? I know they're just speakers, but does anyone know of any manufactures who have sold these as sirens or giant voice systems? Thanks.

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STH-10, SD-10, 2 Model 2s

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