Stingerssx 10+ year member
Junior Member
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!
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!