CJ18 Posted December 24, 2012 Report Share Posted December 24, 2012 I would expect similar results to what I posted above, but just smaller numbers. Quote Link to comment Share on other sites More sharing options...
STEvil Posted December 24, 2012 Report Share Posted December 24, 2012 (edited) Use an o-scope Check your jumper leads, its not uncommon that they can have poor connections internally (not where the alligator end grabs but where the alligator end is crimped inside the plastic sheathing). Edited December 24, 2012 by STEvil Quote MickyMcD - "Capable of making some serious trouser flapping volumes at where's-my-testicles frequencies, the Servo-Drives used to be fairly jaw dropping..." Any time you have have a power wire next to your frame put some rubber hosing (or cut up an innertube) around it. The wire is bound to wiggle (due to driving or flex) and the casing will eventually wear through. Hammerdown... 1% no links to outside websites, business related FB/YT pages allowed. Link to comment Share on other sites More sharing options...
moh.vze.com Posted December 24, 2012 Author Report Share Posted December 24, 2012 (edited) Interesting. How can we figure out what is going wrong? My DC voltage does go from ~14.3V to ~11.4V is this bad for clamp testing? I am wondering if my AC Current Pmax on the clamp meter is messed up. Edited December 24, 2012 by moh.vze.com Quote DC Audio - Singer Alternators - Knukonceptz - XS Power - Hybrid Audio - Rockford Fosgate - Second Skin Audio - SMD - Sundown Audio - Elemental Designs Link to comment Share on other sites More sharing options...
CJ18 Posted December 24, 2012 Report Share Posted December 24, 2012 I will see if I can get my hands on a friends 5k tomorrow and hook it up to my truck and burp it a few times and video everything. Quote Link to comment Share on other sites More sharing options...
moh.vze.com Posted December 24, 2012 Author Report Share Posted December 24, 2012 Use an o-scope Check your jumper leads, its not uncommon that they can have poor connections internally (not where the alligator end grabs but where the alligator end is crimped inside the plastic sheathing). I have a Velleman Oscope HSP10. I'll hook that up on my next test tomorrow after I charge the batteries over night. Quote DC Audio - Singer Alternators - Knukonceptz - XS Power - Hybrid Audio - Rockford Fosgate - Second Skin Audio - SMD - Sundown Audio - Elemental Designs Link to comment Share on other sites More sharing options...
moh.vze.com Posted December 24, 2012 Author Report Share Posted December 24, 2012 I will see if I can get my hands on a friends 5k tomorrow and hook it up to my truck and burp it a few times and video everything. Thanks. Quote DC Audio - Singer Alternators - Knukonceptz - XS Power - Hybrid Audio - Rockford Fosgate - Second Skin Audio - SMD - Sundown Audio - Elemental Designs Link to comment Share on other sites More sharing options...
Ninja_v1.0 Posted December 24, 2012 Report Share Posted December 24, 2012 here http://www.stevemeadedesigns.com/board/topic/151034-measuring-power-by-clamping-smd-damore-engineering-ad-1-video/ 1 Quote When your at the top everyone is coming for you, friends, family, haters and even those who don't know you.. my advice.. KILL EM ALL Link to comment Share on other sites More sharing options...
moh.vze.com Posted December 24, 2012 Author Report Share Posted December 24, 2012 (edited) here http://www.stevemead...ing-ad-1-video/ Ah power factors and phase angels. I remember solving homework problems like those in my electronic classes but never understood what those numbers ment until now. Multiplying by that power factor number gives the rms? Anyways, back to using the oscope, I don't think my Velleman can give me a current graph and the voltage graph like that lunchbox scope. So should I just clamp it to the point of clipping even if I have to stop the volume knob 2 volume notches before my max tuned? Edited December 24, 2012 by moh.vze.com Quote DC Audio - Singer Alternators - Knukonceptz - XS Power - Hybrid Audio - Rockford Fosgate - Second Skin Audio - SMD - Sundown Audio - Elemental Designs Link to comment Share on other sites More sharing options...
CJ18 Posted December 26, 2012 Report Share Posted December 26, 2012 (edited) Just shot these real quick tonight while I was testing 2 of my Level 6 15s free air. acA- 5.45a acV- 38.1v = 207.645w @ 6.99 ohms This was done with the 5k turned up just under half volume. This test was not done to show power output, but to show how to properly clamp an amplifier. Edited December 26, 2012 by CJ18 1 Quote Link to comment Share on other sites More sharing options...
Miguels Posted December 26, 2012 Report Share Posted December 26, 2012 i would like to see you clamp the 9k lol Quote my logshttp://www.stevemead...-my-new-set-up/my blow through loghttp://www.stevemead...future-updates/ 96 ss http://www.stevemeadedesigns.com/board/topic/164094-96-impala-ss-build/ Link to comment Share on other sites More sharing options...
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