David Pescovitz:
Honrmassive is a 2000 watt horn sound system that can “project ‘content'” up to a kilometer. It’s been seen heard at Burning Man, the Coachella Valley Music Festival, and a few other big blow-outs. From Hornmassive.com:
HORNMASSIVE (2004) (Matt Hope) is a 2 Ton (4500 Lbs US), 3.5 M by 3.1 M by 4 M mobile 2000 watt steel and aluminuim horn sound system, all powered from a commercial 12†speaker driver. It functions as a mobile audio input station… (and is) designed to be the ultimate monophonic sound projector intended to catalyze social activities in multiple settings.
Link (via The Cool Hunter)
Originally from Boing Boing