jizzybizzy Posted January 17, 2009 Report Share Posted January 17, 2009 everyone here is going to tell me to look at the stickied "setting the amplifier gain" topic.. however.. i did ... and i have one question what do i turn my cheapo dmm to in order to set it properly? i know it has to be on AC which it is. i just dont know what the knob needs to be on? Quote you ain't been bizzy til you've been wit jizzy. Vehicle:: 2005 Saturn Ion Headunit:: Jensen 9312HD Speakers:: RE SE Coaxials Subwoofer(s):: (2) 15" RE SEs Amplifier(s):: Audiopipe AP1500.1D Audiopipe AP1504 Enclosure:: Sealed Wire: KNU KONCEPTZ 1/0 Battery:: Kinetik HC600 Link to comment Share on other sites More sharing options...
Guest mkornely89 Posted January 17, 2009 Report Share Posted January 17, 2009 are you putting the probes on the positive and negative speaker terminals on your amp? I would say 10 A Quote Link to comment Share on other sites More sharing options...
jizzybizzy Posted January 17, 2009 Author Report Share Posted January 17, 2009 are you putting the probes on the positive and negative speaker terminals on your amp?I would say 10 A yeah i watched the demo and read everything ... i know what to do ... it just never said what setting i should put it on... thanks Quote you ain't been bizzy til you've been wit jizzy. Vehicle:: 2005 Saturn Ion Headunit:: Jensen 9312HD Speakers:: RE SE Coaxials Subwoofer(s):: (2) 15" RE SEs Amplifier(s):: Audiopipe AP1500.1D Audiopipe AP1504 Enclosure:: Sealed Wire: KNU KONCEPTZ 1/0 Battery:: Kinetik HC600 Link to comment Share on other sites More sharing options...
Guest mkornely89 Posted January 17, 2009 Report Share Posted January 17, 2009 Ive always done the amps times voltage equals power, so if you know the voltage your amp is seeing, and you measure the current at the speaker terminals on your amp, you have the power. Quote Link to comment Share on other sites More sharing options...
Guest mkornely89 Posted January 17, 2009 Report Share Posted January 17, 2009 Another way i saw on here was to put the DMM on AC volts and measure (with the probes) at your speaker terminals you are using. By using the equation (watts x resistance)^(1/2)= volts, you can determine the power your amp, if it does 600 Watts RMS at 2 ohms, or whatever you have. so in that case, 600x2=1200, the sq. root of 1200 is almost 35, you should measure at your speaker terminals and adjust your gain know until you measure 35 volts. Really, you can do it a lot of ways, because you can manipulate it and convert it into different equations. Quote Link to comment Share on other sites More sharing options...
Stephen Posted January 17, 2009 Report Share Posted January 17, 2009 are you putting the probes on the positive and negative speaker terminals on your amp?I would say 10 A thats for amps, you need volts. set it on 200v Quote you can cook bacon shirtless if you're not a pussy...lol not hatin, but am i wrong here it looks as if the amp is not grounded its hooked directly to the battery. it that the way it should be. DC POWER Link to comment Share on other sites More sharing options...
Guest mkornely89 Posted January 17, 2009 Report Share Posted January 17, 2009 yes, i tried to elaborate in my next post. but if you want, you can measure your amps at the speaker terminals as well, if you know what your voltage is at your amp. So if the voltage at your B+ is 13, and your amp can do 600 Watts, than measure at your speaker terminals until you measure 46 amps. Basically, use whatever ohms law equation you want. I think the important thing is the constant 50 Hz test tone at 0 dB. with that being constant, your DMM readings wont jump around Quote Link to comment Share on other sites More sharing options...
Guest mkornely89 Posted January 17, 2009 Report Share Posted January 17, 2009 check this one out also. http://www.rockfordfosgate.com/scripts/rig...ated=1119555993 Quote Link to comment Share on other sites More sharing options...
Boon Posted January 17, 2009 Report Share Posted January 17, 2009 (edited) are you putting the probes on the positive and negative speaker terminals on your amp?I would say 10 A Real good advice here :01nocomment8so: The resistance of your multimeter when set to measure amps is pretty close to 0 ohms. So not only will you blow the fuck out of your multimeter (often the 10A setting is unfused) you'll also either instantly protect your amplifier or blow that up too. Set it to 200 in the V range. the _ with the ~ indicates it will measure both AC and DC. yes, i tried to elaborate in my next post. but if you want, you can measure your amps at the speaker terminals as well, if you know what your voltage is at your amp. So if the voltage at your B+ is 13, and your amp can do 600 Watts, than measure at your speaker terminals until you measure 46 amps. Basically, use whatever ohms law equation you want. I think the important thing is the constant 50 Hz test tone at 0 dB. with that being constant, your DMM readings wont jump around Holy crap, it just gets worse. 46 amps at the speaker terminals?! With my VFL400.1's when I see 46 amps at the SPEAKER TERMINALS the amp is outputting over 2000 watts into a 1 ohm load. Do you really think the B+ has anything to do with the output current? THE AMPLIFIER DOES NOT OUTPUT THE B+ VOLTAGE THEREFORE V=/=B+ THEREFORE V=IR is null and fucking void for this. 46 amps into a 4 ohm load = 184v E^2/R = 8464w... God damn. Until you know enough that people aren't going to BLOW THEIR SHIT UP by listening to you, stop giving advice. Edited January 17, 2009 by Boon Quote 10.x volts fo' life! Link to comment Share on other sites More sharing options...
eliassami5 Posted January 17, 2009 Report Share Posted January 17, 2009 wow...out of the 9 responses some actually managed to answer the OP's question... Set it to 200 in the V range. the _ with the ~ indicates it will measure both AC and DC. Quote 91' Jeep Cherokee - The Heep Just Empty Every Pocket 96' Volvo 960 - The B◘x [sPL_4_U] HiFonics - Alpine Pioneer - Clarion Infinity - Kicker KnuKonceptz Link to comment Share on other sites More sharing options...
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