clipping?

[jesuspunk25 10+ year member]

I just bought a elemental designs ed12k from woodmister on here. So I put it in a sealed box (probably just under 1 cube) and powered it with a tiny 222w sony amp which is supposedly 80w @ 4ohm bridged and the sub is 75-400w rms. The point of this thread: it sounded like crap. If I turned my cd player up it would make a noise that I'm not sure how to explain... slapping or perhaps snapping would be good words to kind of expain it. Could it be that the amp was clipping? I hope to get this figured out within a couple weeks because I'll be installing it (with a different amp) and a cd player for my girlfriend's (soon to be fiancee) birthday.

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[jj4475 10+ year member]

that lil sony 222 is a lil beast i dont care wat anyone says...

 

[jesuspunk25 10+ year member]

it's more like a third of a beast... only reason I have it is to run my 6.5's in the back (for now) although I might use it to run my 4" ample speakers in the front.

 

[joshpoints 10+ year member]

I just bought a elemental designs ed12k from woodmister on here. So I put it in a sealed box (probably just under 1 cube) and powered it with a tiny 222w sony amp which is supposedly 80w @ 4ohm bridged and the sub is 75-400w rms. The point of this thread: it sounded like crap. If I turned my cd player up it would make a noise that I'm not sure how to explain... slapping or perhaps snapping would be good words to kind of expain it. Could it be that the amp was clipping? I hope to get this figured out within a couple weeks because I'll be installing it (with a different amp) and a cd player for my girlfriend's (soon to be fiancee) birthday.

I'd be afraid of clipping. I don't trust sony or kenwood amps. Especially when it's not a class D amp. I'd say be very careful with your gain setting and save for a better amp or you're going to mess up that speaker. I have my kenwood amp feeding 150 RMS to each of my ED 10's(mine are rated for 300 watss rms each) right now and I set the gains conservative due to fear of pushing the amp into clipping. It's going to sound much better when you get a better amp. 80 watts is way underpowering that sub. My setup right now is pathetic compared to when I had my subs powered by a quality amp that put out 600 watts rms (300 per speaker). I'd get a class D amp way more flexible which is nice if you plan on adding speakers or changing to different ohm speaker.

 

[bigbassman Premium Member]

for that sub... any kind of smacking / slapping noise is going to be the spider that has broken the glue bond from the basket..

pull it out, and check the perimeter of the spider landing...

Loyd L.

 

[jesuspunk25 10+ year member]

I didn't see anything wrong with the glue or the tinsel itself... if that's what you were talking about. I tried moving it (gently) and it stayed in place. Should I test it with my kole amp (300w x 2 @4ohm) and just unhook both of my subs to test it? Then I'd know if it was the amp... but that might risk damaging the sub too.

 

[bigbassman Premium Member]

not the tinsels leads..

the black disc that connect the cone / voice coil to the basket...

Loyd L.

 

[jesuspunk25 10+ year member]

I tested it out with my amp earlier at very low levels and it sounded much better. If I turned it up I could hear a little noise still but not much... would mounting it with only 4 screws possibly make some noise at all? Well I'll take it out and check the right thing out tomorrow.

Thanks for the help so far and being nice to a noob with dumb questions!

 

[PV Audio 5,000+ posts]

Sounds like it 's bottoming out. Check your gains.

 

[bigbassman Premium Member]

ED K's can't bottom out.. coil doesn't reach backplate..

it will sound better at low volume.. the spider won't start smacking the basket until the cone moves more...

Loyd L.

 

[ravendarat 10+ year member]

Could be from air leaks, doubtful but possible, try putting in ALL the screws next time just to be sure //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif