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10-30-2007, 05:12 PM
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#4 |
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Advanced Member
Join Date: Oct 2007
Posts: 161
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I-S, the specs for the Thunderbolt 1000 say it outputs 125 dB measured at 100 ft.
Also for perspective, the cone is 56" long and the opening ~28"x29". I think there used to be one on top of a building downtown. Wonder where others were located? |
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