TonyD'Amore Posted April 20, 2013 Report Share Posted April 20, 2013 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: 2 Quote Link to comment Share on other sites More sharing options... 599 462 3
crunkjuice1 Posted April 20, 2013 Report Share Posted April 20, 2013 History in the making Quote Link to comment Share on other sites More sharing options... 47 1.3k
Brandon15zzz Posted April 20, 2013 Report Share Posted April 20, 2013 Untill you make a cost effective way to "clamp" power. I guess your going to have to hear about people clamping it the cost effective (poor people) way. Quote Vehicle: 1995 Impala SSHead Unit: Pioneer AVH-P4400BHMids And Highs: (still deciding)Batteries: 1 Deka Group 34 Time to make a race car.My Build Log: Solo X 12"http://www.stevemead...don15zzz-build/My Build Log: DC lvl 4 xl 15"http://www.stevemead...don15zzz-build-My Wall Build Log: 4 Lanzar 15's/ 3k+ RMShttp://www.stevemead...t-by-techforce/My Feedback:http://www.stevemead...1 Link to comment Share on other sites More sharing options... 92 3.9k
TonyD'Amore Posted April 20, 2013 Author Report Share Posted April 20, 2013 Untill you make a cost effective way to "clamp" power. I guess your going to have to hear about people clamping it the cost effective (poor people) way. Just clamp and divide by 3 lol 3 Quote Link to comment Share on other sites More sharing options... 599 462 3
TonyD'Amore Posted April 20, 2013 Author Report Share Posted April 20, 2013 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. 6 Quote Link to comment Share on other sites More sharing options... 599 462 3
strangeduck Posted April 20, 2013 Report Share Posted April 20, 2013 (edited) wait, a fosgate amp doing less than rated? ok, lets see the 2ohm test. edit: does the birth sheet for that amp say 1862 @ 4ohm? just curious. Edited April 20, 2013 by strangeduck Quote Rest in peace, walled 87 accord build log 03' Corolla build with AA Mayhem inside. My super random youtube channel and terrible camera work. Wiring comparison by CaptainzPlanetz Wire and fuse guide by Guest SyKo13 Link to comment Share on other sites More sharing options... 4.8k 9.1k 30
TonyD'Amore Posted April 20, 2013 Author Report Share Posted April 20, 2013 wait, a fosgate amp doing less than rated? ok, lets see the 2ohm test. edit: does the birth sheet for that amp say 1862 @ 4ohm? just curious. check out the capacitor testing videos we just posted, we run the amp in many configurations Quote Link to comment Share on other sites More sharing options... 599 462 3
strangeduck Posted April 20, 2013 Report Share Posted April 20, 2013 (edited) i see you lost 126 watts with only .5v drop. So, the fosgates hate anything below 13v, or at least this one does. edit dammit, i dont have any graph paper and i don't have excel installed. i want to chart the voltage drop and power output drop and see what the curve looks like. It's not quite linear, but it looks like it has the potential to do over 1600 at 14.4v. I take back what i said lol. Edited April 20, 2013 by strangeduck Quote Rest in peace, walled 87 accord build log 03' Corolla build with AA Mayhem inside. My super random youtube channel and terrible camera work. Wiring comparison by CaptainzPlanetz Wire and fuse guide by Guest SyKo13 Link to comment Share on other sites More sharing options... 4.8k 9.1k 30
TonyD'Amore Posted April 20, 2013 Author Report Share Posted April 20, 2013 One thing that might need to be clarified. The voltage readings that the AD-1 records are taken at the amplifier's power and ground connectors. The voltage at my battery was almost 1.0V higher than the voltage at the amplifier on the 1 ohm runs. Typical resistance of 1/0 pure copper is around 0.0983 milliohms per foot. In a typical install one might have 15 feet on the positive side, and an equivalent resistance on the ground side (either thru chassis or with wire). So now we have 0.0983 milliohms per foot X 30 feet = 2.95 milliohms. This amp was probably pulling 250 amps or so during testing so 250 amps X 2.95 milliohms = 0.74 volts. Then add the losses at every connection point and we've probably found my missing volt. Quote Link to comment Share on other sites More sharing options... 599 462 3
bdog Posted April 20, 2013 Report Share Posted April 20, 2013 Untill you make a cost effective way to "clamp" power. I guess your going to have to hear about people clamping it the cost effective (poor people) way. 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 4 Quote REP Link to comment Share on other sites More sharing options... 106 1.4k
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