Wanna hear something very wierd?

[grampi 10+ year member]

I've posted in several topics about the issue I've had with my system ever since I installed it. The issue was a low output by my sub and having to turn the gains and sub controls all the way up AND fade my comps to a minus 6 or 7 just get a balanced sound. I always thought the problem was because of the very high impedence (10K ohms) of the preamp outs on my Alpine 7892. Now I'm not so sure that was the problem.

I'm getting the vehicle I had this system in ready to sell, so today I pulled out all of the audio equipment. When I pulled out the sub enclosure, I measured the impedence of the sub at the terminal cup using a multimeter. It measured 10 ohms. Puzzled, I removed the sub from the enclosure and checked the wiring. I have an Elemental Design e12kd2 (it has dual 2 ohm voice coils). I made sure the VC's were wired in series, and they were. This should've given me a reading of 4 ohms at the terminal cup. I disconnected the wires between the VC's and checked each VC individually. They each read 2 ohms. I reconnected the wires in series and took another reading and this time I got 4 ohms. I wonder if I had a bad connection while it was installed in the system and it was actually presenting a 10 ohm load to the amp? That would definitely explain the low sub output, but I can't for the life of me figure out what would cause the 10 ohm load. I will certainly find out if the problem is gone when I get my stuff installed in my other vehicle. I definitely know now to take an ohm reading BEFORE connecting the amp to the sub.

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[fatboyracing 10+ year member]

a loose wire maby

 

[Vipervenom18 10+ year member]

This seemed to be my exact problem, same issue you had.

I haven't driven in a while, and have yet to determine the cause, but will check this out for sure when I do.

 

[skylineTT 10+ year member]

i wouldve thrown the stuff back in the car to see if it was better. lol

 

[grampi 10+ year member]

i wouldve thrown the stuff back in the car to see if it was better. lol

I already had everything else disconnected and I didn't want to spend the time to hook it all back up.

 

[Vipervenom18 10+ year member]

Let us know if this fixed your problem.

How long until you re-install them in the next ride?

 

[BassBallin]

that is wierd

 

[Vipervenom18 10+ year member]

Indeed

 

[grampi 10+ year member]

Let us know if this fixed your problem.
How long until you re-install them in the next ride?

I will have 10 days off over Christmas and New Years. I'll have to wait until then. Plus I still have to buy my HU, sub enclosure, speaker wire, and whatever adapter I need to connect my XM receiver to my HU.