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Showing content with the highest reputation on 04/20/13 in all areas

  1. Just clamp and divide by 3 lol so.. lots of amplifier companies are going to have to change there model #'s ? brz 2400 800 lol
    3 points
  2. LATEST UPDATE: I woke up to this email. Looks like its finally gonna air in the USA! Hi Steve, Hope you are well! Just to let you know the series will finally start to go out tomorrow at 10pm on Discovery Science in the US. It is called Outrageous Acts of Science. Here is a link to the site - http://science.discovery.com/tv-shows/outrageous-acts-of-science Hope you enjoy it! David
    3 points
  3. Quick question when did you did the clamp run: you got over 100vac from your multi meter which seems awfully high. Are we sure this was clean power and not clipped? I know there will be a bit of a difference, but something seems off if there is THAT much of a discrepancy. If I do a simple vPtP to vrms conversion on your voltage reading, the numbers make much more sense. And I didn't see an oscilloscope when doing the clamp test. And comparing a reading from clipped power to one of clean power isn't a very good comparison, hence why I ask the question.
    2 points
  4. 2 points
  5. In all seriousness though, hopefully your favorite local install shop will pony up for one and have "dyno days" where people can bring their vehicle in, strap it down to the dyno and find the weak links in their system. We really believe this is going to be a great tool for dealers to show people why REAL copper wire is more expensive, why REAL amplifiers are more expensive, etc. The old adage "you get what you pay for" is pretty accurate when it comes to mobile audio. Of course there are always exceptions to the rule, but when a 50 foot spool of 1/0 awg wire only weighs 10 pounds, something is horribly wrong.
    2 points
  6. Just clamp and divide by 3 lol
    2 points
  7. I took this picture to show that the panel doesn't take up that much space at all. It is actually rather low profile for how big these panels are. Especially once i put the screen on. this is a UBL (uninterrupted build thread)...no talk just pics... click here to leave a comment or join the public discussion! http://www.stevemeadedesigns.com/board/topic/166901-72-chevelle-system-fix-worst-install-by-a-shop-ever-ripped-out-new-kicks-started-41713/ thanks!
    2 points
  8. I cant say much yet, and i don't know much about it anyway.....but Discovery International contacted me and wanted to experience the ride, find random people in public and get their reaction to the system, do hair tricks, rip phone books and at the end attempt to break a pane of glass. I honestly did not think i could break the glass very easily but boy was i mistaken......wow! oh.....and Psyph.....LOLZ! He gets a pass since supersonic glass shards would send most people ducking for cover hahah!! it was a fun day. I dont know if i can post my vids yet i am waiting to see if i am allowed. If not i will after the show airs in September. Here is a few Ninja pics
    1 point
  9. Alright guys, I am all done hearing about "clamping". The numbers generated from that are so far off and don't account for many factors. I just did a quick little dyno run vs the clamps tonight to show how drastic the error is. If you want to know more detail about why clamping doesn't work, there is another video on the D'Amore Engineering youtube channel that describes the problems in detail. Clamps vs Amp Dyno vid here: Detailed explanation of why clamping is wrong vid here:
    1 point
  10. Tony Candela of CE Auto Electric Supply, Juan Rodriguez and I decided to do some testing with the AD-1 Amplifier Dyno to see what effects adding a capacitor to your system does. We did over 60 Dyno pulls with a Rockford T2500-1bdcp, without a capacitor, with a 1 Farad electrolytic capacitor (a real 1 F), and a 100 Farad carbon supercap. Test vehicle is a 2013 Jeep Grand Cherokee, 5.7 Hemi, 180 amp alternator, single group 49 AGM battery, all wiring 1/0 AWG copper. We tested each possible combination 3 times just to make sure our numbers were consistent, which they were. Video part 1 is continuous power testing, video 2 is dynamic burst power testing. Enjoy!!! Video part 1= Continuous power testing (uncertified dyno test mode). We do 4, 2 and 1 ohm dyno runs with no cap, 1 F cap, and 100 F cap. All tests in this video were made using the Uncertified Dyno Mode which is a continuous sine wave. We test a Rockford T2500-1bdcp in car, with no added capacitors, then with a 1 Farad aluminum electrolytic capacitor added, and then with a 100 Farad carbon supercapacitor added. RESULTS: No Capacitor: 1499 Watts RMS @ 13.07V into 4 ohms 2059 Watts RMS @ 11.84V into 2 ohms 2366 Watts RMS @ 10.83V into 1 ohm With 1 Farad Capacitor: 1489 Watts RMS @ 13.10V into 4 ohms 2024 Watts RMS @ 11.90V into 2 ohms 2358 Watts RMS @ 10.87V into 1 ohm With 100 Farad carbon supercapacitor: 1531 Watts RMS @ 13.13V into 4 ohms 2208 Watts RMS @ 12.25V into 2 ohms 2606 Watts RMS @ 11.30V into 1 ohm Engine RPM held between 2200-2500 for all tests. 1F capacitor didn't add any power on the continuous RMS test, actually lost a few watts probably due to the increased number of wire connections. 100F capacitor added more than 10% more power on the continuous RMS test Make sure to watch part 2, dynamic power testing (burst power). Hint: The results are different! --------------------------------------------------------------------------------------------------------------------------------------------------------- Video part 2= Dynamic burst testing (Dynamic Power Dyno Mode). We do 4, 2 and 1 ohm dyno runs with no cap, 1 F cap, and 100F cap. All tests in this video were made using the Dynamic Power (Burst) Dyno mode which is representative of musical peaks. We test a Rockford T2500-1bdcp in car, with no added capacitors, then with a 1 Farad aluminum electrolytic capacitor added, and then with a 100 Farad carbon supercapacitor added. RESULTS: No Capacitor: 1543 Watts RMS @ 13.80V into 4 ohms 2550 Watts RMS @ 13.32V into 2 ohms 3154 Watts RMS @ 12.76V into 1 ohm With 1 Farad Capacitor: 1613 Watts RMS @ 13.98V into 4 ohms 2666 Watts RMS @ 13.60V into 2 ohms 3426 Watts RMS @ 13.35V into 1 ohm With 100 Farad carbon supercapacitor: 1620 Watts RMS @ 13.95V into 4 ohms 2616 Watts RMS @ 13.65V into 2 ohms 3260 Watts RMS @ 12.91V into 1 ohm Engine RPM held between 2200-2500 for all tests. 1F capacitor didn't add any power on the continuous RMS test, but it OWNED the Dynamic Burst testing!! 100F capacitor added more than 10% more power on the continuous RMS test, but less than 5% on the dynamic burst test.
    1 point
  11. Birth sheet is 1325 @ 4 ohms, 2260 @ 2 ohms, 3488 @ 1 ohm. I thought it was a CP ?
    1 point
  12. This AD-1, serial #0001 is going to be on it's way to SMD headquarters next week. I'm sure he will test all kinds of wacky situations and combinations with it. I'm excited to see those results!
    1 point
  13. lookw like even a 1 farad cap could help on a burp then? maybe for a smaller system?
    1 point
  14. We all know SE has excellent CS, this guy isn't changing anyone's mind lol
    1 point
  15. we pulled over a random family in a jeep.......asked them if they wanted to be on TV and experience a system they probably would never forget. They were like hell ya! and they did...i don't normally ask people if they want a demo, they ask me, but the camera man had instructions to find some random people. It was fun and they had a blast!
    1 point
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