Ok, so I got my new sub...now i need more help.

[logik05se 10+ year member]

Sup fellas

As i stated in my first post I had a 2000 peak, 1000 watt rms fosgate power hx2 blow within 20 minutes on my mtx thunder 81000D amp. I gave the installer the benifit of the doubt because its an old sub.

Today I received my rockford fosgate t210d4 10inch sub. 1600 peak, 800 rms. I wired this sub the way fosgate told me too, positive to positive and negitive to negtive. Everything seemed fine, I was playing wit the adjustments on my amp by work. The gain I have up about 1/4 of the whole way, so its barely up. It sounded real nice and clean. When I got home and had the music low, I noticed that even though the sub was hittin, I heard an odd sound coming from it. Almost like a buzz or a rattle you can say. It still hits hard, but the sound is definatly audible at very low volume. WTF!

Please help.

I know this installer said something about wiring this thing up for stereo (which I dont know why after some research), could this have anything to do with it?

Click to read more...

 

[logik05se 10+ year member]

crap...nobody huh.

 

[logik05se 10+ year member]

loose inner dustcap or someting maybe?

i really dont know...it will happen from very low volume to high volume. Its definatly 100% coming from the sub because when I turn the gain completly down the sound is no longer herd.

The sub still hits really hard though, so i doubt its blown. I wouldnt really know if its a blown voice coil....its a dvc sub, but once again its hitting excellent so it probably wouldnt be that rite?

 

[Stem 10+ year member]

tinsel slap or coils rubbing

 

[logik05se 10+ year member]

tinsel slap or coils rubbing

is there any easy fix for this besides sending it in for warranty service that will leave me without a woofer for 2 months.

The friggin thing is 2 hours old this makes no sense.

 

[E-DUBB]

Try playing one voice coil at a time and see if you hear the same thing on each side (with the gain up and down). If you hear in only on one side, then you have a bad voice coil, but if you hear it on both sides, you either have an improperly broken-in sub, or a defective one.

 

[logik05se 10+ year member]

Try playing one voice coil at a time and see if you hear the same thing on each side (with the gain up and down). If you hear in only on one side, then you have a bad voice coil, but if you hear it on both sides, you either have an improperly broken-in sub, or a defective one.

tried both of them individually and still herd it.....funny thing i noticed is that when I let the sub rip, and go high volume for a minute or so, the noise would go away and then slowly come back.

my installer nor rockford knows what it is.

 

[canadiancav 10+ year member]

Try playing one voice coil at a time and see if you hear the same thing on each side (with the gain up and down). If you hear in only on one side, then you have a bad voice coil, but if you hear it on both sides, you either have an improperly broken-in sub, or a defective one.

Ummm, no, not at all.

A voice coil is wrapped around a former, which moves up and down in the gap due to the changing magnetic field. Hooking up a single voice coil at a time will not diagnose a noise on either "side", because both coils are wrapped around the former.