Quote:
Originally Posted by kaisen
Bell, I thought of you when I posted. How is your hearing, btw? 169db is absolutely ear-bleed territory, even outside the car or in the same enclosed shop. Yikes!
A friend owned a shop where he built national championship sound quality (not db) cars and they had a show where I sat in Rockford Fosgate's competition Astro (or GMC Safari?) in the early nineties that had a wall of woofers just behind the passenger compartment. They turned it up and I remember it being hard to breathe. The pressure literally pounded my back and chest. If I recall hearing that at some point it can interfere with your heartbeat. I never did it again.
I have to admit, I watched the video with the sound off. I have no desire to hear it. Seeing it is enough.
|
my hearing is fine.....mostly LOL having spent 20 years in pro audio has probably had the same effect of someone who works in a large factory.......
one thing to realize that most "serious" spl competition cars/trucks are not street legal, and are only designed to play a single frequency.......the armored car really liked 32hz.....however at the time the cd of test tones we had to use didn't go that low, so we used an electronic frequency multiplier and could generate whatever frequency we needed from the required cd........also during competition we'd never be inside the vehicle, as a human body would absorb some of the volume and in turn it wouldn't be as loud LOL
our truck was a blast, we were almost kicked out of the toronto expo center building as we were knocking lights out of the ceilings (yes the giant round ones)
had the most fun using a tone generator and sweeping through the frequencies to make different sections of convention centers rattle.......
it was a fun game, and VERY expensive to play........which is why we always played with someone elses money (boss audio in our 2 big trucks cases)....sure it was on the lower end of quality compared to what else was out there....but we were given free reign in developing the product we wanted to use.......
the armored truck was built as a demo vehicle first, competition vehicle 2nd.....this was so we didn't have to trailer it to each show......
normally you need to deal with a large trailer and all the associated bs unloading, securing parking etc......with that thing we pulled up, wiped it down and turned it on.....we could be packed up and on the road 5 minutes after the end of a show, where with a trailer it's literally take hours to secure everything involved.....
here are some more pics of that beast......still trying to dig up some more good video.....
130 amps (120 for the 60 15" subs- 2 amps on each sub)
60 15" woofers, 6 rows of 10 across.....
the enclosure/baffle was made out of 1.5" mdf then laminated in aluminum....
i drove it all over the midwest including a few trips to vegas for the CES show.......i probably logged around 50,000-60,000 miles in it over 2 years.....basically a show every other weekend.....
technically in competition over a 3 year period (probably 60+ competitions) the truck only lost 2 times...both times to alma gates at finals in the last round, her truck was a no expense spared state of the art non-street legal competition truck
you can search her name....she and her son patrick are legends in the industry......we spent many show weekends closing the hotel bar LOL
good times.....