Got_Bass89 Posted September 21, 2008 Report Share Posted September 21, 2008 Ok so i know the formula and stuff but subwoofers are never right on the dot... I got 4 cvrs ran in series suppose to be @ 1ohm load but its actually a 1.4ohm load... Do i use the actually 1.4ohm in formula or still just use 1ohm which is what its suppose to be at...???? Thanks Quote Passport Build Here Alarm: Prestige APS997A 2-Way/Remote Start HeadUnit: Pioneer DEH-P6000UB Front Battery: Yellowtop Optima D34/78 Back Battery: 2x C&D Technologies High Rate Series UPS12-475FR 134AH Subs: 2x DC Lv4XL 18's Amps: 2x Sundown Saz1500's Strapped Box: 12Cubes 33hz 185sqin Port(15.4sqin per cube) Pillars: AudioBahn AS31Q Front Doors: Clif Designs TX40.5 Back Doors: Clif Designs CD50.4C Rear Speakers: Clif Designs TX46.5 Front/Rear Amp: Kicker ZX350.4 Back/Pillars Amp: Kicker ZX200.2(Looking for another zx350.4) Electrical: 1/0 Scorpion Wire 2 Runs Pos and 2Runs Ground, Knu 1/0 Flex Running to Amps ect, Big 3, JL 8Ga For Speaker Wire, Knu Karma RCA's, Scorpion Volt Meter Deadener: 100 sqft Sound Destroyer Mat And SECOND SKIN Damplifier Pro Door Pack Link to comment Share on other sites More sharing options...
Boon Posted September 21, 2008 Report Share Posted September 21, 2008 How do you get 1 ohm from seriesing them o___O Do it based on 1 ohm to be on the safe side Quote 10.x volts fo' life! Link to comment Share on other sites More sharing options...
VtecDomani Posted September 21, 2008 Report Share Posted September 21, 2008 the .4 ohms is most likely the resistance of your multimeter. if you touch the probes together it will probably show .4 ohms. Quote Head Unit: Pioneer DEH-P4050UB Subs: 2 Pioneer Premier 12" ts-w3004spls Sub box: 3.2ft3 tuned to 35hz Sub Amp: SoundMagus DK 1800 Speaker Amp: Rockford Fosgate 200a4 Bridged to fronts Front Speakers: DLS MS5A components 2 gauge power & ground Link to comment Share on other sites More sharing options...
Decaf Posted September 21, 2008 Report Share Posted September 21, 2008 the .4 ohms is most likely the resistance of your multimeter. if you touch the probes together it will probably show .4 ohms. ? wtf.... u are never suppose to touch the probes... how are the subs actually wired... Quote Link to comment Share on other sites More sharing options...
jonnylowkon Posted September 21, 2008 Report Share Posted September 21, 2008 (edited) ? wtf.... u are never suppose to touch the probes... how are the subs actually wired... ur suppose to touch the probes together to test the leads for resisitance.. like my OTC DMM my leads have a resistance value of .24 ohms and thats with aligator clips .. anythng over .5 ohms and ur suppose to replace the test leads.... they do break down over time from flexing bud... its like a self check Edited September 21, 2008 by jonnylowkon Quote 250 amp mechman alt Sundown 100.4D Sundown 1500v2 now goin to the cruze Sundown ZV3 12d2 Sundown sa6.5cs X2 Kenwood X597 Trying something new 2011 Chevy Cruze X8 1500v2 Link to comment Share on other sites More sharing options...
mrrairai Posted September 21, 2008 Report Share Posted September 21, 2008 ur suppose to touch the probes together to test the leads for resisitance.. like my OTC DMM my leads have a resistance value of .24 ohms and thats with aligator clips .. anythng over .5 ohms and ur suppose to replace the test leads.... they do break down over time from flexing bud... its like a self check Exactly. Also you touch the leads before you measure diodes to make sure the meter is working properly. Quote Member since 25 Jun 2006 2011 Yukon DenaliCustomLightz 4300K HID RetrofitEsky TailsEsky Third BrakeEsky 22sEsky Appliques Link to comment Share on other sites More sharing options...
jonnylowkon Posted September 21, 2008 Report Share Posted September 21, 2008 (edited) Exactly. Also you touch the leads before you measure diodes to make sure the meter is working properly. good add i forgot to say that lol.... and every sub is different im using 2 dual 4 ohm subs in a parrallel and i get a 1.21 ohm load at the amp after my subtraction of my leads resistance Edited September 21, 2008 by jonnylowkon Quote 250 amp mechman alt Sundown 100.4D Sundown 1500v2 now goin to the cruze Sundown ZV3 12d2 Sundown sa6.5cs X2 Kenwood X597 Trying something new 2011 Chevy Cruze X8 1500v2 Link to comment Share on other sites More sharing options...
BigPimpin91 Posted September 21, 2008 Report Share Posted September 21, 2008 the .4 ohms is most likely the resistance of your multimeter. if you touch the probes together it will probably show .4 ohms. Same, the test leads have roughly .25-.4Ω resistance. So you are sitting at a perfect 1Ω. Set voltage accordingly. Quote BigPimpin91's Banging Music Link to comment Share on other sites More sharing options...
Got_Bass89 Posted September 21, 2008 Author Report Share Posted September 21, 2008 Your subs are never perfect on the ohms.. You'll see a 2ohm sub at 1.8 or whatever.. 4ohm sub at 3.6ohm and so on... My subs are all dvc 2ohm subs wired to 4ohms each and wired in a series for a 1ohm final load but it actually reads 1.4.. So I should just calculate it with what its suppose to be 1ohm? Quote Passport Build Here Alarm: Prestige APS997A 2-Way/Remote Start HeadUnit: Pioneer DEH-P6000UB Front Battery: Yellowtop Optima D34/78 Back Battery: 2x C&D Technologies High Rate Series UPS12-475FR 134AH Subs: 2x DC Lv4XL 18's Amps: 2x Sundown Saz1500's Strapped Box: 12Cubes 33hz 185sqin Port(15.4sqin per cube) Pillars: AudioBahn AS31Q Front Doors: Clif Designs TX40.5 Back Doors: Clif Designs CD50.4C Rear Speakers: Clif Designs TX46.5 Front/Rear Amp: Kicker ZX350.4 Back/Pillars Amp: Kicker ZX200.2(Looking for another zx350.4) Electrical: 1/0 Scorpion Wire 2 Runs Pos and 2Runs Ground, Knu 1/0 Flex Running to Amps ect, Big 3, JL 8Ga For Speaker Wire, Knu Karma RCA's, Scorpion Volt Meter Deadener: 100 sqft Sound Destroyer Mat And SECOND SKIN Damplifier Pro Door Pack Link to comment Share on other sites More sharing options...
E a r t h Posted September 21, 2008 Report Share Posted September 21, 2008 You did a series-parallel config for 1ohm nominal good ok, if your actual is 1.4 set the voltage based on that, I would. It may only be between a volt or two differance though so its up to you. Was the reading taken with coils cold or after running em? I would set the voltage in relation to the coils resistance when hot, that way you know your getting that power as long as your voltage sustains Quote Link to comment Share on other sites More sharing options...
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