I bought an 11ov.2 subwoofer and had it installed in my scion running on a Nine2x amp in a custom fiberglass enclosure. It has been giving me nothing but problems. i cant figure out what is going wrong with my sub but it is making abnoxious sounds. i talked to the tech guys and they said air leak but i checked it out no leaks and i also brough it to the guy that did the install and he claims nothing is wrong with my subwoofer. I was wondering if it could be the wiring. He wired the sub in stereo 2x300@2 ohms. and i was wondering if that could be the problem. if anyone has some feed back that would be awesome anything will help.

 

Did you put the power wire next to the other wires?
If it is that probably is what the humming sound is coming from.

 

no its not a humming sound. it sounds like my sub is gonna explode. even at low volume and no gain.

 

change the frequency maybe?

 

What makes the guy that did the install say there's nothing wrong with it?

 

You may think that it's air-tight, as did I, but I heard a squeaking sound when my sub would hit hard, so I watched it. It was jumping off the box! So I drilled it down further, and I no longer have problems.

I'm not denying that eD never has lemons, but it's pretty much unheard of, at least on these boards.

 

If the sub's coils are running stereo off of the amp, is the amp's input set to mono? If not, the voice coils will be seriously unhappy when one coil is playing one note while the other coil is trying to play another.

Though I don't know why it's not just running bridged. Makes more sense.

 

Hahaha! I didn't even think of that. A voice coil on each channel? Wow, no wonder. That sub is one unhappy camper!

 

eD tests all their subwoofers before they ship them out. i highly doubt that its a subwoofer issue. On the flip side i also thought my sub boxes were air tight then i filled them up with water and there were a ton of small little pin sized holes.

 

Did you get a dual 2 or dual 4 ohm sub? Dual 2 should be wired in series: positive of one terminal goes to the negative of the other terminal, than then positive and negative terminal that haven't been wired are hooked up to the bridged channels of the Nine.2x. Set the gain properly and you should be jamming.

 

i took a closer look at the sub and it looks like all the little seals around the screws arent like glued down so when the sub hits it pulls them away letting air in.

 

Call or e-mail ED and they'll get you taken care of. Phone : 641.792.2501 or http://www.edesignaudio.com/edv2/kay...kets&_a=submit

 

ya but i didnt kno if this ment the sub was blown, because if its blown then sending it back will do me no good because the waranty covers manufactures defects not blown subs.

 

bump

 

i would just like some feedback from some more knowledgable people on the subject. just so i can get a better idea whether its manufactures problem or i blew it up.

 

if you call them they'll tell you. they're reasonable guys and they'll let u know. we have no idea what you did to it so they'll tell you.

 

Here are a few things to do:

1. Use weather stripping around the mounting ring to make sure there is an airtight seal between the sub and ring.

2. With the gain turned all the way COUNTER-CLOCKWISE, put your volume on your radio to 50%, turn off bass boost, set loudness off, set the EQ to flat or natural and play a 20 hz tone. Move your head around the fiberglass box and listen to any whistles/air leaking in the box. If you find them, have someone patch them up

3. If everything is fine at this step, call ED, tell them what you've done and they'll help you.

 

he probably got power hungry and cranked up the gain and then blew it. user error no warantee. but call them anyway

 

Not even God could tell you what's wrong on an internet forum, especially when you won't tell us how it's wired, what airspace the box is, what voice coil configuration the sub is(S2, S4, D2 or D4) nothing.