Mike Whitenton Posted October 8, 2013 Report Share Posted October 8, 2013 A) 0.004Ohms x 200A = 11.8V 11.8V - (0.002Ohms + 0.002Ohms) x 200A = 11V C) 11V x 200A = 2200W D) 2200W x 0.7 = 1540W 1 Quote Link to comment Share on other sites More sharing options...
TonyD'Amore Posted October 9, 2013 Author Report Share Posted October 9, 2013 Video 4: Intro to AC has been uploaded! 2 Quote Link to comment Share on other sites More sharing options...
TonyD'Amore Posted October 9, 2013 Author Report Share Posted October 9, 2013 (edited) A) 0.004Ohms x 200A = 11.8V 11.8V - (0.002Ohms + 0.002Ohms) x 200A = 11V C) 11V x 200A = 2200W D) 2200W x 0.7 = 1540W Nice work! I know for question A you meant 12.6V - (0.004 ohms x 200A). Edited October 9, 2013 by TonyD'Amore 1 Quote Link to comment Share on other sites More sharing options...
Mike Whitenton Posted October 9, 2013 Report Share Posted October 9, 2013 A) 0.004Ohms x 200A = 11.8V 11.8V - (0.002Ohms + 0.002Ohms) x 200A = 11V C) 11V x 200A = 2200W D) 2200W x 0.7 = 1540W Nice work! I know for question A you meant 12.6V - (0.004 ohms x 200A). Damn, I slipped up on that. I was trying to show my work so others could benefit. Whoops! Since you already corrected it, I won't go back and edit it. Quote Link to comment Share on other sites More sharing options...
kirill007 Posted October 10, 2013 Report Share Posted October 10, 2013 (edited) I hope people watch these video's, eventhough it's basic knowledge if you have ever studied anything related to electricity. (there are just too many people who don't understand the basics) Good job Tony, you would be a good professor. Edited October 10, 2013 by kirill007 Quote Thinking is the root of all problems... You ALWAYS get what you pay for. Link to comment Share on other sites More sharing options...
Krakin Posted October 10, 2013 Report Share Posted October 10, 2013 I hope people watch these video's, eventhough it's basic knowledge if you have ever studied anything related to electricity. (there are just too many people who don't understand the basics) Good job Tony, you would be a good professor. IIRC he was a professor at the University of Arkansas. Quote Krakin's Home Dipole Project http://www.stevemeadedesigns.com/board/topic/186153-krakins-dipole-project-new-reciever-in-rockford-science/#entry2772370 Krakin, are you some sort of mad scientist? I would have replied earlier, but I was measuring the output of my amp with a yardstick . . . What you hear is not the air pressure variation in itself but what has drawn your attention in the two streams of superimposed air pressure variations at your eardrums An acoustic event has dimensions of Time, Tone, Loudness and Space Everyone learns to render the 3-dimensional localization of sound based on the individual shape of their ears, thus no formula can achieve a definite effect for every listener. Link to comment Share on other sites More sharing options...
TonyD'Amore Posted October 17, 2013 Author Report Share Posted October 17, 2013 Hmm.... Videos 1, 2 and 3 were DC voltage videos, Video 4 is the intro to AC. Video 4 has very little views! wth? Shouldn't the AC videos be just as relavent to what we do in car audio?? If you don't know, the cable from your battery to the amplifier B+ terminal is where the DC voltage stops in audio. It is all AC voltage from that point until it hits your ear drums. So if you haven't watched Video 4, you should before watching Video 5. That being said, Video 5, RMS and Clipping has been posted! http://damoreengineering.com/freeeducation.html Quote Link to comment Share on other sites More sharing options...
Wicks Posted October 17, 2013 Report Share Posted October 17, 2013 Great video Tony Love that you went in and explained specifically what RMS is rather then just throwing up a general formula, especially comparing RMS to AVG. If people are serious about this hobby then they should be interested in learning how it works technically. The part on the Vrms of the clipped waveform should open some eyes, that's for sure. I know its important to keep content in its respective section of the forum, but to increase the views and make sure as many people see the videos as possible, it may not be a bad idea to pin them in the Electrical (and maybe Amplifier) sections as well. When you get to it, the Subwoofer Section could use a pinned video on impedance too. 1 Quote This post sent with 100% recycled electrons. 2004 BMW M3Mechman 280A 2 - XS Power XP30001 - XS Power D375 500F of Maxwell SuperCaps (soon to be 1000F) iPadMini2Dash mounted O-scopeAudison bitOne (Remote DRC MP) Highs Amp - PPI Art A404 Hertz HSK130 (HSK165 waiting...) DC Audio DC9.0K 2- DC Audio XL12m2LEGAL - 147.3dB @ 41Hz OUTLAW - 150.2dB @ 45Hz OUTLAW - 145.7dB @ 30Hz JUNE 2014 SOTM WINNER 2014 COLORADO PEOPLE'S CHOICE WINNER SOTM BUILD:http://www.stevemeadedesigns.com/board/topic/141656-wicks-e46-m3-build-bass-turbo-button-and-a-big-new-addition/page-68#entry2802026 Link to comment Share on other sites More sharing options...
subsonicluv Posted October 17, 2013 Report Share Posted October 17, 2013 -The word "subsonic" to describe low frequency audio is TOTALLY incorrect Hmmmm. Well I guess it's back to the drawing board on my user name... Quote 04 Blazer Xtreme HU: Kenwood KDC-MP235 Front Stage: Lanzar MX6C Components Rear Stage: Lanzar MX693 6X9's Sub Stage: (2) Obsidian 18 D2 V2 Mids / Highs Amp: Boston Acoustics GTA 704 Sub Amp: Boston Acoustics GTA 1000m Optima Yellow Top (up front) Singer 275A Alternator Future Plans: One More GTA 1000m (maybe) More batteries More runs of 1/0 Pioneer DEH-X7500S (on order) Link to comment Share on other sites More sharing options...
TonyD'Amore Posted October 17, 2013 Author Report Share Posted October 17, 2013 (edited) -The word "subsonic" to describe low frequency audio is TOTALLY incorrect Hmmmm. Well I guess it's back to the drawing board on my user name... lol yeah somehow "subsonic" was used somewhere in audio and just stuck. Kind of like "Watts RMS", that also isn't correct. We are just trying to educate and keep our sport legit. I'm sure I'll get to all of this stuff in future videos, because once we are done learning about basic electricity we are going to dive in to audio. But for now: Supersonic = faster than 768 miles per hour Subsonic = slower than 768 miles per hour Ultrasonic = Higher than 20,000 Hz Infrasonic = Lower than 20 Hz -Tony Edited October 17, 2013 by TonyD'Amore 4 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.