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Ok, took the amp and sub out. Ran the amp directly to (+) Term. of batt and grounded it to the grounding term on the firewall. Definately a good ground. No capacitor in this configuration eliminating it from the circuit. Ran my RCAs to the amp and fired everything up. EXACTLY the same problem. So... now I have to determine which is good and which is bad. Sub or amp. That way I figure out which component to return.
I have already checked the sub for continuity on both voice coils and have a good reading. I BELIEVE I have tested it correctly for ohm load. Anyone know a good way to test an amp w/o having a speaker that you know works?
Strange that your parallel measurement is 0.2 ohms.
Measuring 3.3 ohms on each voice coild appears OK - although I typically see Multimeter readings of 4 to 4.7 on 4 ohm voice coils with my meter (tends to read about 0.4 ohms just touching the test probes together).
If both of your VC's are 3.3 - you should be measuring 1.65 with them in parallel.
If you put the probes of your multimeter together what resistance do you measure?
If you put the voice coils in series what do you measure?
Originally Posted by Haulin' S,Mar 10 2006, 09:30 PM
Hey, I've got an issue I can't seem to get resolved.
Mono Amp. DVC 4 ohm each side. Wired pos from amp to pos on both sides of the sub. Neg amp terminal to neg terminals on sub. Amp is clipping and going into protect mode. Tried swapping out wires to make sure there was not short and same issue! Any suggestions???
Thanks!
let me see if i am understanding you correctly.
you have 2 woofers that are dual 4 ohm impedence.
from your description of how you have everything wired, you have pos+ going to all pos+ leads and neg- to all neg- leads.
if so, you have your speakers wired into a 1 ohm load. dual 4, wired into parallel will give you 2 ohm, then 2 subs at 2 ohm = same as dvc, so when you wire that into parallel again, you have a final impedence of 1 ohm.
you said your amp is 2 ohm stable, basically your amp cant handle a 1 ohm load.
try this, wire your woofers in a series configuration. to give you final impedence of 8 ohm, then wires those parallel to amp for final impedence of 4 ohms. you wont be getting full power, but at least it wont shut off.
either change to dual 2ohm subs or get a new amp that is 1 ohm stable, or even get an amp that you can bridge.
Originally Posted by Haulin' S,Mar 11 2006, 01:11 PM
I don't think that's it. Upon initial connection, I ran less than 50% input level on the amp. The deck is a JVC KDAVX1.
It's been awhile since I've done this stuff, but I KNOW it should sound different when you fire everything up. The "sound" I'm hearing indicates some other problem.
When running my multimeter on each voice coil, I'm reading 3.3 ohms when the meter is set @ 200 in the ohms value on my meter's selector dial. I'm not sure if that's where I need to be to get the correct reading or not. Can anyone confirm?
Also, when running parallel, I get a .2 reading.
did you check your impedence at the amp. when everything is wired up, take the speaker wire out of the amp and then check for the final impedence?
wrong reading could be due to low battery. change the battery and test again.
just try what i mentioned in the above post. if it doesnt work something is wrong.
Strange that your parallel measurement is 0.2 ohms.
i've put in a couple Infinity amps, and they are generally pretty robust amps.
it sounds like you've got a case where you're trying to run too low of a load (whether you intend it or not). you might have a wire touching off somewhere that's sending you to continuity. check all your connections closely. be sure you don't have some loose wires bridging a gap somewhere.
also, w/ no wires connected check the + from 1 voice coil to the - of the other voice coil. make sure you don't somehow have things grounding out elsewhere.
Originally Posted by SebringDemon,Mar 11 2006, 07:27 PM
let me see if i am understanding you correctly.
you have 2 woofers that are dual 4 ohm impedence.
from your description of how you have everything wired, you have pos+ going to all pos+ leads and neg- to all neg- leads.
if so, you have your speakers wired into a 1 ohm load. dual 4, wired into parallel will give you 2 ohm, then 2 subs at 2 ohm = same as dvc, so when you wire that into parallel again, you have a final impedence of 1 ohm.
you said your amp is 2 ohm stable, basically your amp cant handle a 1 ohm load.
try this, wire your woofers in a series configuration. to give you final impedence of 8 ohm, then wires those parallel to amp for final impedence of 4 ohms. you wont be getting full power, but at least it wont shut off.
either change to dual 2ohm subs or get a new amp that is 1 ohm stable, or even get an amp that you can bridge.
You've got everything right, but I am running only one sub. More comments to come...
Originally Posted by WLAURENT,Mar 11 2006, 04:33 PM
Strange that your parallel measurement is 0.2 ohms.
Measuring 3.3 ohms on each voice coild appears OK - although I typically see Multimeter readings of 4 to 4.7 on 4 ohm voice coils with my meter (tends to read about 0.4 ohms just touching the test probes together).
If both of your VC's are 3.3 - you should be measuring 1.65 with them in parallel.
If you put the probes of your multimeter together what resistance do you measure?
If you put the voice coils in series what do you measure?
Ok guys... YOUR HELP IS GREATLY APPRECIATED, firstly.
I am running only one sub.
It's an Audiobahn AW1206T DVC each coil running 4 ohms.
I had a friend bring his box over. He's got two RF single voice coil cheapy subs.
I ran one and it worked fine. I ran both of 'em parallel and it worked fine. I'm concluding that my sub is bad somewhere, presumably one of the voice coils isn't good. Does this sound like I'm on the right track? If so..... WAAAAAAAAAAAAA!
I was really looking forward to getting this thing finished this weekend!
