I have a Clarion HU and a GM-D8500M sub with 10 Polk DXi 10"s in the back.

I was driving back from Houston and the subs just stopped, no popping sound or anything. I checked the wires in the box and on the back and they are fine. The blue light comes on the sub so its getting power. I put a testlight on the remote wire at the sub and it lit up so that appears to be getting power.

I pushed in on the cones gently and couldnt feel or hear a grind so they are OK. I reset the HU just incase to see.

I dont have the keys to pull the HU out but I did tape all the wires back there so I doubt one is lose.

Any thoughts, ideas ? Am I going to have to track down keys and pull the HU anyway ?

 

Plug an ipod or similar devise into the amp with a 1/8th to RCA adapter cable. If the subs work, then it tells you that you aren't getting signal from the HU.
You can also unscrew the wires from the amp to the subs and touch a 9volt battery to those wires. If the subs move, then you know that the wires didn't come loose inside the box.
If you have a multimeter, you can set it to read AC voltage and check for signal coming out of the amp.
This can all be done without pulling the HU. If all that checks ok, then you need to get behind it and see if something is loose, or if your HU pre-outs died.

 

Thanks, Ill check that!

 

From power to ground I got 12<br />
From the ground to remote I got 12,<br />
<br />
For AC at the wires on the amp I get 1.0 to 1.9<br />
<br />
I tried the battery trick and with the iPod and got nothing

Pushing on fhe cones there is no grinding feel or noise

 

It you put the battery to the sub wires, and the subs didn't move, the. You have a problem between those wires and the subs. Either wire came loose in the box or a lead in the sub broke. I have seen this where the wire runs across the spider.

 

Check the coils with a dmm.

 

They're fried. No ohm from the subs and I took them to a store and they said they are toast. They said the amp is good. Asked them why and they said they didn't know but could be any one of the following.

I had standard speaker wire from amp to sub which overheat and killed the coil

Under power and caused distortion and killed em. No distortion IMO

over powered an the same as above. not iikely IMO too


So now, recommend me 2 good subs that shouldn't die like the two polks in it. Listen to all spectrums of music buy mainly techno, rap and reggae

 

What is your budget? What amp do you have, and what are its power ratings? Do you plan on going with 10" subs again?

Just curious as to why they said the comment about your speaker wire.....what gauge speaker wire are your using?

 

Definitely not either of those, and I would avoid whatever shop told you those things.

 

I will be avoiding them. This is the amp http://www.crutchfield.com/S-Kz2yFqi...ml#details-tab

I want to stick with this.and the two 10s.

 

What else could cause it ? the speaker wire was what I got in a kit at AutoZone.

 

It's weird that both subs failed at the same time.

Are you planning to use the same box? If so, how many cubic feet does it have? What is your budget for the subs?


Kits from Autozone are generally not of high quality. What gauge power & ground wire do you have?

 

Yeah same box and same amp. Not sure on the size of the box ill check though.

4ga Power
4ga Ground
12ga Speaker Wire
I actually remember I got this kit

 

Determining the air space the box has will tell you what subs will work with it.

 

i would pull the subs out and test them on a home reciever or something just to confirm they are blown, i find it very hard to believe that BOTH would blow at the exact same time.

distortion will damage speakers when underpowered, but normally they will start grinding on the pole piece long before they just "fail" another option is that the outputs inside the amp have fried, this is VERY common, all the power will come on the amp, but NO sound output,

at this point i would recommend hooking up another speaker (any) to the amp and see if you get any sound out, if its a small speaker just make sure your at low volumes, if you get any sound at all then its "something" with the speakers, but i still find it very hard to believe both cooked at the same time and they arent seized up.

 

Ill track down a sub and hook it up to the amp when I get home.

I got no reading off of the subs when I put me multimeter on it when I took them out.

 

I went home and it was 16gague wire :|

The box is 12.5 x 12.5 x 25 so if I did me math right thats 2.26 cubic feet