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Macleans.ca

Canada’s magazine

Bass pumping ambulances will get your attention by any means necessary

Next time you’re stuck in traffic and you feel a vibration under your seat, it’s not your cell phone. If you are driving in Montreal, Victoria, B.C., or Windsor, Ont., and an ambulance equipped with the Rumbler or the Howler comes by, you will feel the boom of a sound wave—as these Boston Globe videos demonstrate. The thumping effect is created by a pair of subwoofers attached to the bumper of the ambulance, making it seem like it’s one of those souped-up bass-pumping cars.