[757labs] 20,000 Watt Car Amp CL Ad, follow-up post
telmnstr at 757.org
telmnstr at 757.org
Sun Feb 19 03:05:53 EST 2012
> For Harold: http://www.youtube.com/watch?v=RRDA64OegJY So if we're
> talking about exhibitions systems, 1200 amps is pretty insane but I've
> seen full size SUV's with custom mount brackets for 3 and 4 GM AD244
> (220 amp rated) alternators on the engine (and now thanks to youtube
> I've seen even more). Ethan has talked about systems that use a
> hydraulic drive system to run a sufficient number of alternators to
> power the stereo continuously. You'll also see plenty of them that run
Here it is! I saw the topic but haven't read the entire thread yet. Here
is that Blazer I was talking about that had one alternator under the hood
and a hydraulic pump where the HVAC compressor went. It drives 4 more
alternators mounted in the back of the blazer. There is 4 amplifiers that
are insane, 2 on each side, behind the back side windows on this blazer.
All of the windows are on actuators. And the paint job is all painted bad
ass. The truck caught on fire, but I guess the guy rebuilt it. Here is
some really bad pics:
These low res pics do not do it justice. The magazine shoot was ... wow.
This isn't loading forme, but it's probably the article I saw.
Modern version of the amp that was in that truck:
3200 watts RMS @ 2 ohms x 1 channel
1600 watts RMS @ 1 ohm x 2 channels
The idea of these amplifiers is driving large numbers of 12" or 15"
subwoofers in series/parallel combinations. Some of the subwoofers have
dual voice coils.
Manual doesn't saw what the current load is, just that it's fused at 300
- 350 amps.. Gulp.
There were classes for competition, and there would be like a 5 watt and
lower class. There were amps that would put out "2 watts" and crazy ohm
loads and such for that.
There were raw SPL competitions (loudest system wins), but quite a bit of
it was "sq" competitions. Sound quality. People ripped apart the cars and
covered the body in noise dampening material (dynamat) and did wierd
speakers. 8 channels of amplification all crossed over at frequencies.
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