Audio advice and discussions with audiophiles and professionals. Free discussion forums, open to all and frequented by industry experts. Ask questions and get advice on stereos, speakers, hi-end amplifiers, pre-amps, home theater, tube hi-fi, turntables, vinyl, tweaks, music, films, video, DVDs and more.
Did anyone see the Myth Busters rerun where they tested the myth of destroying a car with its audio system? This was hillarious! They made up a subwoofer from 1/4" aluminum sheet stock cut into trapazoids and made up sort-of a cone, used a truck inner tube for the surround, and drove it off a crank shaft built onto the drive shaft of a Mercedes. The throw was about 5". They had the guy from the dB Drags measure this thing, and before it self destructed got ~150dB at 16Hz. It only lasted a few seconds. Chris
Those guys are hilarious! Sometimes they do really cool stuff. But I guess sometimes they miss the boat too. 150dB is loud, but a small array of prosound horns can do this in free space. Inside the confined space of a car, competition systems are doing 100x this loud, in the 170dB range.