Posted January 12, 201213 yr Im going to be strapping my 2 audiopipe apsm1300, essentially the master amp will control both amps. The amps strapped together are suppose to do ~2000watts @ 2 ohms. Is it possible to hook them up strapped and do DMM tuning by putting the probes on each amps terminal? The master amp is the + and the slave amp is the - ... does this work? ~63volt for the DMM meter... sqrt(2000 * 2ohm)
January 12, 201213 yr when i strapped my sundown amps that is how i tuned my amps initially then i used an o-scope to see what was going on! Just be sure to be in VAC (volts a/c)
January 12, 201213 yr You can't use that formula with speakers, it will only work into a non-reactive load.Save the DMM for something else.
January 12, 201213 yr hey here is a good read! about pmpo vs rms! http://www.edaboard.com/thread4681.htmland your amp is rated in pmpo which I have just seen today!
January 12, 201213 yr You can't use that formula with speakers, it will only work into a non-reactive load.Save the DMM for something else.he is using it for two amps not speakers? or did i miss something...
January 12, 201213 yr No, that formula only has one variable, voltage, in order to work correctly. You are adding a second variable, impedance. You have no idea what this variable is. It isn't 2 ohms, ever. No matter what subs you have. This is because a subwoofer is a reactive load and fluctautes impedance costantly at varying frequency/temp/enclosure.Again, you cannot measure power with a single DMM alone into a reactive load.Save your DMM for something else.
January 12, 201213 yr No, that formula only has one variable, voltage, in order to work correctly. You are adding a second variable, impedance. You have no idea what this variable is. It isn't 2 ohms, ever. No matter what subs you have. This is because a subwoofer is a reactive load and fluctautes impedance costantly at varying frequency/temp/enclosure.Again, you cannot measure power with a single DMM alone into a reactive load.Save your DMM for something else.He is setting the amps for proper gain.
January 12, 201213 yr You cannot set the gain properly using that formula (or chart) because you have an undefined variable (impedance). This is the whole point.Read what I posted carefully, it will make sense if you break it down.
January 12, 201213 yr You cannot set the gain properly using that formula (or chart) because you have an undefined variable (impedance). This is the whole point.Read what I posted carefully, it will make sense if you break it down.Okay
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