Bronze Member Username: TrunkslayerFl US Post Number: 28 Registered: May-06 | How can you measure the wattage from your amp? Does it have something to do with equations? |
Bronze Member Username: BonhamdNorthern, Michigan USA Post Number: 83 Registered: Nov-07 | bench test |
Gold Member Username: Nd4spd18Northwest PA Post Number: 5463 Registered: Jul-06 | YOU can't. Someone with the right equipment could, but good luck finding them. Most shops don't even have it. |
Silver Member Username: Pbplayer05Carroll, Iowa Post Number: 242 Registered: May-07 | no Sh*t i went to my audio shop and they were lke wats is that and said u cant do that |
Gold Member Username: JtownTeam Revolution, Texas Post Number: 1697 Registered: Mar-07 | I went to a pretty big Car Audio Franchise in Texas, called Custom Sounds I asked if they had a TL...."what's that?" A decibel meter...."a what?" A decibel meter..."oh, you mean a db meter? no way, those things are way too expensive, you're not gonna find any place around here that has one..." but I know a place that has one, it is a real small shop. the store is smaller than my apartment, and they only have one garage port |
Silver Member Username: CcdoggyPost Number: 179 Registered: Jul-06 | umm.. you want wattage measured, couldent you do that with a clamp meter (true rms) around one of the speaker wires to get the AC current and then another multimeter to test the AC voltage and then just multiply them to get wattage? Assuming this would be done with test tones for consistency. |
Silver Member Username: TejcurrentPost Number: 998 Registered: Apr-07 | That doesn't tell you anything accurate or usable. A rough idea? Sure, but about as accurate a measurement as sony uses. |
Gold Member Username: Nd4spd18Northwest PA Post Number: 5494 Registered: Jul-06 | You need a very high current power supply, really big resistors (can't use speakers as the load), and a scope to do a benchtest. |
Silver Member Username: CcdoggyPost Number: 180 Registered: Jul-06 | Yea i suppose you are right, due to the impedance variation in the driver it wouldent be ideal. but you could get a rough idea for that driver atleast. |
Gold Member Username: Nd4spd18Northwest PA Post Number: 5503 Registered: Jul-06 | You wouldn't really even get a rough idea....... you'd get a falsely high reading (by a lot) Actually bcae1 has an article on this very subject http://www.bcae1.com/measpwr.htm |