4 ms·I can only imagine if you tried this in Boston ;)by fizx 16y agoI can only imagine if you tried this in Boston ;)Anechoic 16y agoShouldn't be a problem. The Big Dig did extensive noise monitoring for almost 10 years and maybe had a couple of monitors messed with.percept 16y agoI think he meant this: http://en.wikipedia.org/wiki/2007_Boston_bomb_scare http://en.wikipedia.org/wiki/2007_Boston_bomb_scare