Gain level(s)
#14
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there are 2 possible problems I see with defro's method (no dis intended, just kind of thinking outloud, feel free to correct me)
1) unless you have a 'good' dmm like a fluke that shows true rms the meter kinda fudges the number and will only be accurate with a 60hz tone (wich is easily done)
2) it's my understanding that the resistance you read off the speaker terminals is not the same as the impedance the amp will see when music is being played, as I understand it the impedance changes all the time.
so the only true way to measure the output would be with a clamp on ammeter and a volt meter(that reads tru rms or use a 60hz tone). unless of course you have the equiptment to map out the impedance graph
again I've never tried this, just thinking out loud ...flame me as you wish [img]smile.gif[/img]
1) unless you have a 'good' dmm like a fluke that shows true rms the meter kinda fudges the number and will only be accurate with a 60hz tone (wich is easily done)
2) it's my understanding that the resistance you read off the speaker terminals is not the same as the impedance the amp will see when music is being played, as I understand it the impedance changes all the time.
so the only true way to measure the output would be with a clamp on ammeter and a volt meter(that reads tru rms or use a 60hz tone). unless of course you have the equiptment to map out the impedance graph
again I've never tried this, just thinking out loud ...flame me as you wish [img]smile.gif[/img]
#15
Guest
Posts: n/a
the method i recommended can be done by anyone with even a 29.99$ meter from canadian tire. its very accurate with individual tones only, 36hz, 42hz, the frequency doesnt matter as this test will on;y tell you ac voltage at 1 frequency at a time,the test is accurate as is done with a resistive load, aka hooked up to speakers, but like dwvw said there are many ways to get the same answer
#16
i did mine with a $59.99 meter from candian tire that i got for $19.99 on sale,,,now that's a deal! man i love tht store lol. so now if i were to get another identical amp(1 for each sub), would i use the same method i used like dave said, since i don't have a clamp ammeter, to get both amps putting out identical voltage to each sub? but 1700 watts still seems out of whack to me, i'm gonna go check it again
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bushwickbill
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10-10-2008 11:42 AM
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