Jl 500/1 Ohm light issue?

[Hawk]

I have a Jl 500/1 amp with 2 Jl w3 12 6ohm which are parelled down to 1.5 ohm? Car toys did the wiring on them, well when they hit hard the OHM light pops on the amp for a split second and speakers pop. Do i have somthing not adjusted correctly? I turned on the bass Eq and set it where I like it (sound wise) and it helped but it still does it. I have 0 boost and it still does it the subs can take all the power that amp can make and more so I dont understand the problem. Yes I understand its an OHM issue. Someone I know told me to adjust the imput sensitivty up and said it may be peaking out to early. Anyone?

[netcsk]

For parallel: 1/(first speaker) + 1/(second speaker) = 1/Total Impedence
so 1/6 + 1/6 = 2/6 gives you 3 ohms of impedence

Series: first + second = Total

I couldn't imagine that that amp would have problems with 3 ohms, so I'm not entirely sure on what is going on.

Try turning the amp down some and see if that helps. Do you have the gain maxed out?

[StereoInstaller1]

2 Jl w3 12 6ohm

All 12W3D6 are DVC. Chris, you should have known that!:p

OK, so here is the deal. You should understand that impedance is different than resistance in that impedance varies with frequency.

What that means is that the load placed on the amp isn't just some number, it changes continously. All kinds of environmental variables can also affect impedance: temperature, humidity, etc.

The number 1 culprit here is your box.

The box design has more to do with the impedance curve than any other variable. Ported designs typically load the amp harder (lower numerically) than a sealed box...that is why they are more efficient. Really small sealed boxes can have weird impedance spikes too. Any time the woofer moves, it changes impedance...so as you be boomin', your amp sees a different load, continously.

Here is an easy solution for diagnostic purposes: Turn your "Infrasonic" filter on, and set it as high as you can. This will filter out the lowest bass, thus reducing the impedance load generated by the woofs.

GL, and post a pic of your sub box along with measurements.

Luke

[netcsk]

I don't know aftermarket at all :) Guess I should have looked it up though! Doh. Sorries.


Another thing that has a lot to do with impedance is a short haha. Just kidding. This man above speaks the truth.