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<blockquote data-quote="Stingerssx" data-source="post: 8706772" data-attributes="member: 659199">Hello all,I have never been able to set up amp gains with a multimeter.I&#039;ve tried many different times, with many different systems, and many different multimeters.Each time, I can&#039;t get above 7 volts. And then sometimes the meter will go into OL (overload).I&#039;m not sure what I&#039;m doing wrong.I&#039;ve followed a bunch of different articles and tutorials and they all say the same thing. Square root of RMS watts X Ohms.Earlier today, I went out and tired it again.I&#039;m using the Rockford Prime 1200.1D and a 2 Ohm load.800watts X 2 = 1600the square root of that is 40.Using a Fluke 88, I&#039;ve checked the range settings and set for AC volts and in Auto, 300v and 40v I can&#039;t get above 7 or so with the gain full up.&nbsp;So let&#039;s pretend that the meter is off by a factor of 10. If I set it at 4 volts, it&#039;s like only 1/4 the way up. This happens every time I try this. And with every amp, this leaves the gains at only 1/4 way up.Anybody got any sugestions?thanks!</blockquote>

[QUOTE="Stingerssx, post: 8706772, member: 659199"] Hello all, I have never been able to set up amp gains with a multimeter. I've tried many different times, with many different systems, and many different multimeters. Each time, I can't get above 7 volts. And then sometimes the meter will go into OL (overload). I'm not sure what I'm doing wrong. I've followed a bunch of different articles and tutorials and they all say the same thing. Square root of RMS watts X Ohms. Earlier today, I went out and tired it again. I'm using the Rockford Prime 1200.1D and a 2 Ohm load. 800watts X 2 = 1600 the square root of that is 40. Using a Fluke 88, I've checked the range settings and set for AC volts and in Auto, 300v and 40v I can't get above 7 or so with the gain full up. So let's pretend that the meter is off by a factor of 10. If I set it at 4 volts, it's like only 1/4 the way up. This happens every time I try this. And with every amp, this leaves the gains at only 1/4 way up. Anybody got any sugestions? thanks! [/QUOTE]

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