Guest Posted June 7, 2009 Report Posted June 7, 2009 when i set my DMM to 200ohm mode and touch the probes together, i get about .6-.7ohms. is that normal? Quote
fritosaregood Posted June 7, 2009 Report Posted June 7, 2009 yea. depending on how cheap or expensive the multimeter is you get more or less internal resistance from just the meter. ive got one that wont go below 1.5 ohms, even when i parallel speakers to 1/4 ohm. Quote seller feedback: http://www.stevemeadedesigns.com/board/ind...showtopic=61719 http://www.stevemeadedesigns.com/board/ind...showtopic=68281 build log: http://www.stevemeadedesigns.com/board/index.php?showtopic=44800 Gf's build: http://www.stevemeadedesigns.com/board/topic/54346-kickergirls-camaro-new-box-pg-5/#entry753970
ALPINE408 Posted June 7, 2009 Report Posted June 7, 2009 (edited) when i set my DMM to 200ohm mode and touch the probes together, i get about .6-.7ohms. is that normal? yes cheaper dmm's have resitance in them... when you read you ohm's you have to add .6 .7 if your dmm reads -.6 -.7 and minus if it reads .6 .7 so it it reads .7 and you test a 2 ohm sub should read like 2.7 you minus the .7 your dmm automaticaly has Edited June 7, 2009 by Team Bassick (ALPINE) Quote Have you ever had your woofers blown?
banginAltima Posted June 7, 2009 Report Posted June 7, 2009 when i set my DMM to 200ohm mode and touch the probes together, i get about .6-.7ohms. is that normal? That is what the leads on your meter are. What kind and how good of a meter is it? Here's an eye opener for ya.... http://www.stevemeadedesigns.com/board/ind...mp;#entry658450 Quote If you build it, db's will come... NSPL World Record Holder Trunk 0-1800 watts---147.9 with 1722 clamped watts @ 40Hz(9-20-09). Competition Only Record Holder Trunk 0-500 watts---148.1 2006 Nissan Altima 3.5 SE Currently Rebuilding.... My 150db Plus Trunk Build I do box designs. [benH] 6:24 pm: clipping doesn't really hurt subs [benH] 6:24 pm: being an idiot is what blows subs
Stephen Posted June 7, 2009 Report Posted June 7, 2009 my fluke reads 0.0 with thr probes shorted Quote you can cook bacon shirtless if you're not a pussy...lol not hatin, but am i wrong here it looks as if the amp is not grounded its hooked directly to the battery. it that the way it should be. DC POWER
Boon Posted June 7, 2009 Report Posted June 7, 2009 my fluke reads 0.0 with thr probes shorted Mine doesn't I get 0.2 ohms Quote 10.x volts fo' life!
audiofanaticz Posted June 7, 2009 Report Posted June 7, 2009 depending on how old or beat up your probes are can change resistance too. so thats another thing to keep your eye on. Quote
E a r t h Posted June 7, 2009 Report Posted June 7, 2009 also an aged battery in the dmm will cause readings to be off and or jump around more Quote
audiofanaticz Posted June 8, 2009 Report Posted June 8, 2009 also an aged battery in the dmm will cause readings to be off and or jump around more x2 omg. How did i forget that. I ended up running a amp at .2 ohms because of this. DMM varied from .9 to 1.2 or so, meh I just thought it was rise. Quote
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