fi bl keeps shutting off?

[boalova13 0]

I have a bl 18 with a jl 1000/1 running it..the other day i was driving and it jus shut off, I checked to see if i could see what was causing it and the amp was still on but the sub wasn't working..a little bit later it came on and would shut off after it hit a couple times. Then it came on one day and worked flawlessly for 3 or 4 days and now its shutting off again. I think it might have something to do with the temperature because the days it worked it was 50-60 out instead of in the 40's on the days it shut off.

I checked the ground and all the connections and they're fine. what do you guys think it could be? please help me out thanks

Edited November 24, 2007 by boalova13

[danracer 0]

i dont think its the sub cause damn that weather is pretty cold compared to where i live...yo should check the output voltage with a dmm to see if it stops or anything when playing a song.

[boalova13 0]

where can i get one and u know how much they are?

[UNIT 6639 0]

I dont think subs sut off, it must be your amp thats cutting off.

[JimJ 11]

Any home improvement store...a DMM is a required tool if you're going to do anything DIY in audio...

Does the amp go into protection when it shuts off? If not, you've got a loose wire somewhere...

[damonhargroves07 0]

try pushing on the dustcap when it shuts off and see if it will play for a sec. probly just loose wires indside of box is my guess...

[boalova13 0]

it doesnt go into protect, the power light stays on just like normal..how do i check to see if its the wires inside the box? because it'd be nice to troubleshoot it before i took the top off to make sure

[fbi90909 0]

remove the sub and check all wire connections. it could be a loose connection that when certain frequencies or such are moving it out of place which could cause it to cut out yet the amp still stay on. could be even a pinched wire.

check your wires..

[Big Shot 0]

I had a JL sub do the same thing to me. It worked on and off for three months or so, mostly on, until one day no matter what i did i couldn't get it to work. So i bought a new sub... Problem solved!

[boalova13 0]

I had a JL sub do the same thing to me. It worked on and off for three months or so, mostly on, until one day no matter what i did i couldn't get it to work. So i bought a new sub... Problem solved!

the subs not even a month old so i dont think going out and buying a new sub would be the best way to fix the problem lol thanks though

[Parker 2]

check ur tinsel leads

[BKOLFO4 29]

check ur tinsel leads

x2

When the sub quits working, push in lightly on the dust cap and see if it comes back on. . .

you can also pull the sub out of the box and inspect the wires connecting the sub and see if the tinsel leads look normal.

[Big Shot 0]

I had a JL sub do the same thing to me. It worked on and off for three months or so, mostly on, until one day no matter what i did i couldn't get it to work. So i bought a new sub... Problem solved!

the subs not even a month old so i don't think going out and buying a new sub would be the best way to fix the problem lol thanks though

Ya, i didn't think you'd like my solution much but since my sub was over 3 years old, it worked for me. I guess why i shared my experience with you is to put to rest the, "It's the amps fault!" talk. You seem to be pretty sure it's not and i had flashbacks reading your post so... You're on the right track, good luck!

[Big Shot 0]

check ur tinsel leads

x2

When the sub quits working, push in lightly on the dust cap and see if it comes back on. . .

you can also pull the sub out of the box and inspect the wires connecting the sub and see if the tinsel leads look normal.

When my JL quit, i checked everything. All visible connections looked fine. I assume that my leads where broken below the spider. If this were true, and i measured the impedance of the voice coils, would that have shown me what was up by the measurements being wrong/off? And since it's a dual voice coil sub, wouldn't one lead of each voice coil have to break before it stops putting out any sound altogether?

[buickid 0]

Depends how they're wired. If they're wired in series, any coil breaking will break the circuit. If they're in parallel, then current will still flow through one of the coils.

[boalova13 0]

ok i checked the tinsel leads, they looked fine..re wired the sub and it still wasn't it..then i used a dmm and there was any voltage coming through the terminal? How much voltage is supposed to be going to it?

[buickid 0]

There isn't going to be any voltage coming through, since nothing is providing voltage. You need to check the resistance of the terminals. If you have a D2 sub, each coil should be showing about 2 ohms resistance.

[boalova13 0]

im not sure what your talking about..i have a d1 sub and its wired to a 2 ohm load if that means anything

[Parker 2]

Take the sub out of the box and with a low power signal going to it move the tinsel wires around this will tell u if its the tinsel leads or not if it starts working .

[buickid 0]

im not sure what your talking about..i have a d1 sub and its wired to a 2 ohm load if that means anything

Ok, you have a D1 sub. That means you have two voice coils, at one ohm each. Take the multimeter you have, turn the dial or whatever to the resistance measuring setting. It might have the ohm symbol in place of that. Connect the test leads to the Positive and Negative side of one coil. The meter should read about 1 ohm. Test the other coil in the same fashion. If either of the coils don't show about 1 ohm, then you may have a problem with the voice coils.

Also, look at the tinsel leads, are they firmly attached to the sub and the connectors?

[boalova13 0]

how am i able to tell if its the amp?

[creatormass 1]

how am i able to tell if its the amp?

Set your DMM for AC volts and check the voltage coming out of the speaker terminals on the amp. If the test leads are pointed you can just poke them through the insulation on the speaker wires. If your not showing any readings when your music is playing and the amp is powered on then it's an amp issue.

[boalova13 0]

[quote name='SPL Blazer' post='314652' date='Nov 26 2007, 10:55

Set your DMM for AC volts and check the voltage coming out of the speaker terminals on the amp. If the test leads are pointed you can just poke them through the insulation on the speaker wires. If your not showing any readings when your music is playing and the amp is powered on then it's an amp issue.

AM'thats what i did..there was .003 volts or something like that..i tested the wires and they were getting the full 12v..This means its probably the amp right?

Edited November 27, 2007 by boalova13

[boalova13 0]

does anyone know if the jl 1000/1's are good for this? its only 2 months old

Edited November 27, 2007 by boalova13

[Big Shot 0]

Try hooking up another sub to the amp cause you may not be using the dmm correctly. It's a pretty sure fire way to figure out if it's the amp or not anyhow. Sub works fine? Not the amp. Sub works or doesn't just like the other one? Well then it's the amp.