TeamHT Posted January 23, 2014 Report Share Posted January 23, 2014 Especially when idiots don't know what they're talking about and Google can't help them look smart, lol. Especially when they can't break a 45, lol Quote Tell me...does this smell like chloroform to you? Link to comment Share on other sites More sharing options...
alaskanzx5 Posted January 23, 2014 Report Share Posted January 23, 2014 From what I saw in the vid the used what most people do for clamping. a in if you google search you weep find more people doing it that way then not. Quote t1500bdcp 2 t2d4 15" 1 t600.4 1 t400.2 1 set p1 tweets singer alt, tons of wiring, smd vm-1, 80prs, back seat delete, still in the works, aiming for a 145-147 with the ability to play 25hz up to 50hz. Link to comment Share on other sites More sharing options...
TaylorFade Posted January 23, 2014 Report Share Posted January 23, 2014 From what I saw in the vid the used what most people do for clamping. a in if you google search you weep find more people doing it that way then not. You're not catching the point trying to be made. The results are different because they're different measurements. 600w @ 1% THD and 900w clipped. The clamp is showing the clipped power after the other two stopped their measurements. That's why they're different. Not because of the inherent inaccuracy of clamping on subs. But I will agree that most people just clamp their shit where ever. But in this case, the clamp is entirely accurate. 1 Quote Link to comment Share on other sites More sharing options...
Mtnbikecrazy55 Posted January 23, 2014 Report Share Posted January 23, 2014 Sure, there are "accurate" ways to clamp. I posted a vid pretty much showing that. But in all honesty, who has a load to use besides a subwoofer? You'll still need an appropriate high quality o-scope to find the phase angle. I'm not saying that it can't be done with some degree of accuracy, but for us normal guys that don't own a shop it's so much easier to just buy the tools. Even if I did own a shop, I would take the AMM or AD method over having to use 3-4 tools at once all day every day, even if they are a little more expensive. Convenience and accuracy are not cheap. Plus so much easier/faster/simpler/efficient. 2 Quote I hate long signatures.... ...what the fuck is wrong wiht you you fucking fuckity fuck fuck head... Mtnbikecrazy55 Feedback Link to comment Share on other sites More sharing options...
alaskanzx5 Posted January 23, 2014 Report Share Posted January 23, 2014 (edited) Google search clamping and see what you find, I don't find much of anything about the use of a scope or true rms meter. From what I see the common methods of clamping is dmm and clamp meter then multiply the result for wattage. That method being what is easily found on a google search id more misleading then the vid in this thread. the vid shows the most.widely used form if clamping being less accurate then the amm1. The video isn't saying that's the correct way, it's just simply the way that most people do it because it's what info is easily found online for measuring output of an amplifier. Yes there is a correct way to clamp that takes time money and effort. Not to mention can easily have errors due to the human factor. People aren't perfect and make mistakes. The Amm1 has accuracy, convenience, easy transportation, and can earn money back for you. Get the amm1 charge friends 5-10 per amp tested. Say you get 4 friends all with 2 amps, at 5 an amp you make $40, Could make that money in Ann hour or 2 all on the same day. That's $20-40 per hour under the table and who wouldn't want to make that much money per hour? Try to do that with even the cheap in accurate clamp method with just a dmm and clamp meter. Wouldn't be.able to get.that many amps tested using a true rms and scope either. Edited January 23, 2014 by alaskanzx5 Quote t1500bdcp 2 t2d4 15" 1 t600.4 1 t400.2 1 set p1 tweets singer alt, tons of wiring, smd vm-1, 80prs, back seat delete, still in the works, aiming for a 145-147 with the ability to play 25hz up to 50hz. Link to comment Share on other sites More sharing options...
CJ18 Posted January 23, 2014 Report Share Posted January 23, 2014 All I gotta say is amm-1 is a great tool. Pricey but good tool. Prolly best smd tool to date. Video showed clamp wrong. Admit it and move forward. How hard is it to make another 4 minute video? Someone who doesn't read through all these pages or watches video on Facebook or YouTube are going to be mislead. Your product can sell itself, doesn't need to put others down in false ways to sell it. For clamping in a car to see real power this tool is probably the easiest most affordable out there. Are there other ways, yes but this tool will eliminate all human error and be dead on everytime. Awesome stuff. How about this, would you like me to redo the test and use only a TRMS Multi meter. THen how are you going to know the point where clipping occured? The only thing wrong with what I did may be the way I come across on the video instead of explaining why there is such a drastic difference. Here is the fact of the matter. 99% of people who clamp are going to do exactly what I did. Take the biggest number you see and claim it as watts. 1 Quote Link to comment Share on other sites More sharing options...
Pink Noise Posted January 23, 2014 Report Share Posted January 23, 2014 you guys realise the answer you get when u just multiply voltage X current is a peak number right. If you multiply for rms which means taking the peak figure and then multiply by .707 you will get 651. also. therefore the clamp isnt incorrect at all. at the end of the day how can the clamp and multimeter be wrong ohms law has never changed. even if the dmm and clamp is crap the figure wont be off by a mile. just my 2 bits i can be wrong. this is just my opinion. Quote Link to comment Share on other sites More sharing options...
Jessica Posted January 23, 2014 Report Share Posted January 23, 2014 Where do you get .707 from? 1 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...
775Tundra Posted January 23, 2014 Report Share Posted January 23, 2014 (edited) I had no intention of ever buying an AMM1. After reading through this and needing a clamp a scope a truerms mm. I hope I can jump on the amm1 presale to add this to my other smd tools. My biggest headache is my OCD and I need everything organized. Cheaper or more expensive, I don't care it's an all in one tool. Plain and simple. Why shouldn't the company make a profit? Some people don't believe in mark-up or profits. Edited January 23, 2014 by 775Tundra Quote 2003 Tahoe dc 7.5k dc level 5 15's (3) MMats 341's xs power batts lots of sky high cable dual alts(came off the sky-high gmc and don't know who made them) ipad in center console vu-din in center console all being ripped out and being sold Link to comment Share on other sites More sharing options...
Wicks Posted January 23, 2014 Report Share Posted January 23, 2014 you guys realise the answer you get when u just multiply voltage X current is a peak number right. If you multiply for rms which means taking the peak figure and then multiply by .707 you will get 651. also. therefore the clamp isnt incorrect at all. at the end of the day how can the clamp and multimeter be wrong ohms law has never changed. even if the dmm and clamp is crap the figure wont be off by a mile. just my 2 bits i can be wrong. this is just my opinion. Most handheld meters already measure RMS, not peak. So there's no need to multiply by 0.707 unless you're looking at peak numbers from an o-scope. Ohms Law is fine.......for DC. Doesn't directly apply for AC (amplifier output). Tony has a whole string of vids to teach people the basics: 4 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...
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