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Silver Member Username: Jprix82Post Number: 273 Registered: Jan-06 | Can you see how many watts your amp is putting out(bench test)with a DMM? |
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Gold Member Username: Tdeaton1021Near Tampa, Florida USA Post Number: 2286 Registered: Sep-04 | yes but not how many clean watts. youd need an osciliscope or however u spell it. amps x voltage = watts ... i think thats the formula. if its a true rms dmmm anyway. if not take the final product and multiply by .707 |
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Silver Member Username: Jprix82Post Number: 274 Registered: Jan-06 | So its - AMPS x 14.4 = ??? x .707 ? how do you find the amps? |
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Silver Member Username: Safe_crackerChicago, IL US Post Number: 334 Registered: Jan-06 | You need a clamp meter. |
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Silver Member Username: Jprix82Post Number: 275 Registered: Jan-06 | whats a clamp meter? |
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Gold Member Username: Tdeaton1021Near Tampa, Florida USA Post Number: 2295 Registered: Sep-04 | no, AC voltage form the amplifier. not your battery voltage. a clamp meter clamps around the positive wire going to the sub. it willl read the amps running through the wire. now have a dmm hooked up to the outputs and read the AC voltage. now multiply. |
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Silver Member Username: Jprix82Post Number: 277 Registered: Jan-06 | where can i get a clamp meter and how much does it cost? |
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Gold Member Username: Tdeaton1021Near Tampa, Florida USA Post Number: 2297 Registered: Sep-04 | i got a true rms dmm and a clamp meter off ebay for 100 for both. |
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Silver Member Username: Jprix82Post Number: 278 Registered: Jan-06 | you know of any place else? |
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Gold Member Username: SouthernrebelMonroe, Louisiana USA Post Number: 2346 Registered: Mar-04 | Sears... i have this meter: http://www.sears.com/sr/javasr/product.do?BV_UseBVCookie=Yes&vertical=TOOL&pid=0 3482014000 its pretty good...you can get them at Sears for ~$100. |
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Silver Member Username: Jprix82Post Number: 279 Registered: Jan-06 | Great their a sears near my house,are the difficult to use? |
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Silver Member Username: RedlinerWilmington, Ma Post Number: 873 Registered: Jun-05 | ya but guys not trying to knock you or anything. But clamp meters are not very accurate the only true way to tell is to checkt he actual wire you could get a really high number or really low number depending on the placement of the meter its a guessing game you will never have it 100% perfect with a clamp. but then again i have a $330 top of the line fluke clmap on dmm and thats the same way i would go just saying its not all that accurate |