Posted June 14, 201015 yr its so stiff right now i can barely move it with my hand, the coils on the dmm read .7 ohm's and .5 ohm's.regardless of how i wire the VC's it ends up at .5 ohm's, not sure if its my dmm failing or if i just fail at life, any help? final ohm load should be 2ohms FI says .7 ohm's for D1 set so it should be ~1.4-1.5 ohm's
June 14, 201015 yr it's prolly your DMM.If your coils were shot it would read crazy numbers.What is the problem with the sub?
June 14, 201015 yr Author it's probably your DMM.If your coils were shot it would read crazy numbers.What is the problem with the sub?just that it reads .5 ohm's in series or .3 in parallel.just worries me a bit.don't think my saz-3000D is going to be happy @ .5 with my current electrical, sub probaly wouldn't like it ether.
June 14, 201015 yr Like I said, it's prolly your DMM. Replace your batteries and touch the leads together to reset to zero.slightly off is not crazy numbers. When I say crazy I mean obviously fuck up!
June 15, 201015 yr Author Like I said, it's probably your DMM. Replace your batteries and touch the leads together to reset to zero.slightly off is not crazy numbers. When I say crazy I mean obviously fuck up!well.... dmm looks like my dmm is dead, however i put the sub in my car and turned the gain up tell i could start to hear it then before it was even close to as loud as my mid's it blew the fuse that i have been using at ~1500 watts for a while.
June 15, 201015 yr You're probably running on a stock electrical system too...Those coils are wound on a machine that has a very specific length of wire that is calculated to be exactly .75 ohms. You are not going to have one coil .5 ohms and one .75 ohms...it's impossible.You cannot put that kind of power in a stock car with a stock electrical system and yank the gains up and expect magic to happen...It takes power to make power.
June 15, 201015 yr Author You're probably running on a stock electrical system too...Those coils are wound on a machine that has a very specific length of wire that is calculated to be exactly .75 ohms. You are not going to have one coil .5 ohms and one .75 ohms...it's impossible.You cannot put that kind of power in a stock car with a stock electrical system and yank the gains up and expect magic to happen...It takes power to make power.i know it takes power to make power, this is by far not my first system. i also under stand that the gain is not a vol knob. the subs i had in there before where 1.8 ohm's and so i thought .75 + .75 = 1.5 so not that far off. when it didn't sound louder then my phone on vibrate i turned the gain all the way down then slowly turned it up (tune by ear instead of with my dmm) thats when my fuse blew. i am running simi stock electrical, big 3 is done, with the gain set at ~ 1450 by the dmm it ran fine for quite some time. at my max vol 45 of 62 the voltage didn't drop below 13.1V in the back, electrical up grades are on the way as i get more money. and i do keep the sub lvl at -3db at the HU. i don't have ~150 amps to feed it but i do have enof to run it at around ~100 amps.
June 15, 201015 yr Author so for 1.5 ohms at 1500 watts to set the amp properly it should be set by dmm at 47.43V. tho at 1.5 ohm's its probably closer to 2000 watts then it should be 54.77 considering this is right, Voltage = sqrt( (x)Watts X (x) ohms)
June 15, 201015 yr Author it didn't get any louder then my cell on vibrate but it does make the wires connecting the voice coils "dance". does this many any thing to any one?
June 15, 201015 yr A video or pictures would really go a long way here. Make sure you're checking the coils with the amp/car off and a good DMM. You could simply need to turn things up, what size fuse are you running, what enclosure, etc.,
June 15, 201015 yr it's probably your DMM.If your coils were shot it would read crazy numbers.What is the problem with the sub?yeah i messed up a voice coil in my btl not too long ago. one side read 1 and the other VC was going anywhere from .3 to 1.2
June 15, 201015 yr Author well from help forum my normal form it sounds like my coils are out of phase... if i only hook up one coil at a time it plays just fine. Edited June 15, 201015 yr by gcs8
June 15, 201015 yr Author well after more screwing around with it, and a battery. hear are my findings.parallel= okseries= fail
June 15, 201015 yr Author at least you've narrowed it down. which is somewhat of a reliefyep now i just haft to figger out what this all means. i should have gone in to electrical engineering instead of network systems admin. Edited June 15, 201015 yr by gcs8
June 15, 201015 yr Author this thread needed some pics i have more if you want them but hears the basics.
June 15, 201015 yr Take the sub out of the box and take a picture of the terminals with the wire going into them like you say you have it.
June 15, 201015 yr Author Take the sub out of the box and take a picture of the terminals with the wire going into them like you say you have it.as per your request.
June 15, 201015 yr Um...why do you have 3 wires?Take the wire that is in the black (negative) terminal in picture number 1, and hook it to the red (positive) terminal in picture number 2You then have the red (positive) terminal in picture number 1 with no wire in it, and the black ( negative) in picture number 2 with no wire in it.That is where your postiive and negative hooks from your amplifier...You've got some coils fighting each other I think..if you have this hooked up in "series" as i've described above there should be ZERO reason as to why you have 2 pieces of speaker wire in 1 terminal block. Each terminal should have 1 piece of wire in it.
June 15, 201015 yr Author Um...why do you have 3 wires?Take the wire that is in the black (negative) terminal in picture number 1, and hook it to the red (positive) terminal in picture number 2You then have the red (positive) terminal in picture number 1 with no wire in it, and the black ( negative) in picture number 2 with no wire in it.That is where your postiive and negative hooks from your amplifier...You've got some coils fighting each other I think..if you have this hooked up in "series" as i've described above there should be ZERO reason as to why you have 2 pieces of speaker wire in 1 terminal block. Each terminal should have 1 piece of wire in it.its hooked up like in pic 2. Subwoofer Wiring Diagrams, One 1 ohm Dual Voice Coil (DVC) Speakerthere is no third wire. main pos in one coil then main neg in the other but i have also tried main pos and neg in one coil set then jumper wires to the second coil.
