focal crossover stops when it’s cold

Hi every one. I am new here but not new to car audio. I got a set of Focal 165 a1 component speakers and installed them on my 08 civic along a BOSS 4 channel amp and an Alpine 9884 HU.

So here is what I need help with. When it is cold I loose sound from my woofers. I have checked the wiring and all is good. I bypass momentarily the crossover and feed the woofers with the amp output and they work fine. Sometimes Id I go ahead and rewire the crossover all works fine.
I did not drive my car for 4 days and when I got in it the woofers were dead again. Any ideas?

Secondly, I have the notorious "pop" sound coming from my speakers, especially the coaxial Alpines in the rear deck. I have grounded the amp where the factory had grounded some devices also.
Any ideas?

I appreciate your help in advance.

I meant to mention that the poping noise is heard when the car is turned on or off.

Sorry :)

Here is an update... the poping sound from my speakers was due too poor remote turn on lead. I was using a 12volt out from my fuse box, that was causing it. I moved my remote turn on to the remote turn on from the head unit. All is good now.

As far as my crossovers, I went ahead and checked again my terminations. Recut and solder tipped the leads before screwing them on the crossover. All works well now. I have to see what happens over night since it seamed that the cold was causing the issue.

I still would appreciate input on the regard though.

Thank you in advance and I hope that my findings help you guys out.

Boss and Focal in the same sentence? Do yourself a favor and buy a better quality amp. It is just painful to think your running a better than average comp set off a cheeze amp. Not a focal fan but still painful.

If ZED did make a run of Boss it had to have been 85' maybe? I knew about the ESX, Hifonics, Lanzar, Crunch, Nakamichi, US amps. There are a few more but Boss wasn't one of them. Were they Steve Mantz designed or just constructed by ZED?

I am returning the Boss. Since my budget is so small I could only afford another 4 channel Pioneer GM-4300F. Are they any good? What would one recommend as a descent amp for a small budget?

Cheers

They were very recent.  Steve did design and has some of them left, he frequents another forum that I visit, he is (was) trying to sell them for cheap.  It was a few months ago. 

never heard of this before. however you can take a soldering iron and just heat up and add a little solder to all the connections on the crossover there might be a bad solder joint.

check all conections.

-------------
Jon
Installer/Help Technician
---coral springs florida---
mecp certification is not always needed. I have it and it has not helped me out at all. my experience out shines it.

I have checked all connections and solder tipped the wiring to the crossovers. I will take the crossovers a part and check and see what is going on... Wired!

Thanks....

Pay close attention to the solder joints on the heavy inductors,  heat them up from the back of the circuit board and make sure they are still attached to the coil.  They have a tendancy to break right above the circuit board.  The solder joint will look OK but the wire is broken above the board.

I do not know if this helps but the crossovers are brand new...

Thank you for your helps thus far.
As I type I am trying to pry a part the crossovers from their housing.

The wires usually break after months of vibration.  If you are sure that they are new products, this will probably not be your problem.

Update, I took the crossovers apart and redid the soldering job on all the components. As expected the crossovers worked now I have to wait till the morning and see how they will do over night. I'll keep you updated.

So finally I know what was causing the woofers stop working.
Simply water was getting inside my Civic 08 doors. That water would get the voice coil wet, and over night that water would freeze solid. Solid to the point that it would shut down. I am so happy they did not break. By the way they are Focal components.

So, I took them out dried them up and installed them back using a ziplock bag warping their back side. That should be keep them dry.
Yes, they sound just like they did the same way. There was no sonic change I could notice.

I hope that was all that was wrong.

Cheers and I hope that helps someone.

I am glad you got it figured out. I have to say I would have never figured that one out for you. It gets below freezing here for like 5 hours at a time, not long enough to freeze a driver solid.

When you said Cold outside, I was thinking 40 degrees or so.

I am back to say that the problem returned. I know for a fact that the drives are dry thought. So they should not freeze. After a cold night in the morning sometimes I do not get sound out of my Focal woofers. The only way to get them to sound is by cranking the sound up. As if to force them to sound. Sometimes I hear one of them sound distorted.
I cant figure out what is going on.

Do you think this woofers are bad? I am about to pull them out and replace them with a pair of Polk components.

Again any help is appreciated.

Next time it is going to be cold in the morning, bypass the crossover and connect wire from amp directly to woofer. If it still does it, there is a problem with driver. If it is fine, there is a problem with XOver.

I did just that, bypassed the x-over last night. It is 18F out and when I started the car this morning turned on the radio and listened. From my listening position nothing was audible. I turned the radio a little louder and got close to the speakers. I could hear a little, equally in both sides.
I must say that my $50 alpines coaxial speakers have had no issue, the same can be said for the Focal tweeters.

I will call Focal USA today and ask them what they think. That is that.

Focal told me to sent them where I got them from. The guy asked to check and see if there is water that keeps freezing.

These is the end of my rope with Focal I think.


That is that, cheers