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Fat Bob

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Everything posted by Fat Bob

  1. I had read somewhere that they bought Pyle audio, a car speaker maker. I was hoping that meant that Klipsch would get into car audio, but I have never heard of seen a Klipsch car product. If you are partial to horns, and want some for your car, try: http://www.imagedynamicsusa.com/ I know the guys that own and run the company, they have a great product line. Last year I was in Los Angeles and went by their shop, they had some really cool stuff in R&D that should be out by this summer. -Fat Bob
  2. quote: How in the world do they get these absurd numbers? Just up my alley. I used to be heavily involved in the Sound Quality (SQ) side of car stereo. I still have a lot of friends in the sport/hobby. There is a lot of work that goes into a DB Dragster. Think of them as the top fuel of car stereo. Have you ever actually needed to travel a quarter mile in under 4 seconds? The top DB Dragsters usually push in excess of 50,000 Watts. They use arrays of phase aligned 10" to 18" woofers. The vehicles are not very driveable, they go from the trailer to the "lane" to the trailer. Most of the vehicles have been seriously sound deadened, and any opening that is not necessary has been welded shut. The windows and windshileds replaced with thick plexiglas and reinforced with steel. The walls the the woofers are monted on are often made of metal. The power supplies are massive, dozens of batteries, capacitors, multiple alternators. These are speciality machiens. Check out: http://www.kicker.com/kcsc/mainx.show_page?p_filename=GatesdBDrag1.htm The real trick is that you can get a fairly exact volume measurement for the inside of the vehicle. You can easily calculate the resonant frequency for this volume. Then you can find a driver that resonantes near this point. Next, you find the point in the recording that you want to use that has the most energy at this frequency. Now you put that on an A/B auto repeat loop. Voila, a big burst of sound. Most of these vehicles play for two seconds or less in competition. So what't it all for? Reaserach and development. Just like real time drag racing provides information on auto parts in high stress conditions, DB Drag provides information back to the manufacturers about how their components work at the highest levels of stress. The guys at Kicker RMA can disect a woofer or Amplifer that is returned and tell you what caused it to blow up. Then work on improving constants in the next generation of the product. And it is a lot of fun to watch these cars go at each other, stuff is always smoking or melting or blowing up. Everybody has to have a hobby. And this one beats drugs. -Fat Bob
  3. Try calling Rockford Fosgate at 800-669-9899, I'm not sure if this number is still good, haven't used it for a couple of years. Their techs will tell you exactally what sized box to build for a seald or ported system. All you need to know is your woofer model #. -Fat Bob
  4. Great speakers, great price on that package. See if you can get your dealer to throw in some free speaker cables. Mine threw in Monster M Series for the front three channels and an M Series amp to subwoofer RCA cable. Worst they will do is tell you no. -Fat Bob ------------------ When given two conflicting orders, obey them both.
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