Question about Kicker 02S10L74 Car Subwoofer

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Subwoofer works at high volume, doesnt work at low volume

Just recently noticed that my sub only works when i turn the volume up pretty loud or i turn the bass up on my alpine deck higher than normal. When I listen to music at low volume levels, the sub doesn't seem to be working. Also as of today, I'm getting nothing out of the sub even at high volume. I checked all of the connections from sub to amp and so forth, but could it be something inside the sub box, or maybe is there a fuse out??? Thanks for your help.

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Re: subwoofer works at high volume, doesnt work at low...

You had the settings set incorrectly and overdrove it. The voice coil leads are burn't open. If you look at the little flexible braids by the terminals I'll bet they are black/brown and maybe even burn't in half. It's toast.

Posted on Sep 22, 2007

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I have a Kicker Solo X 12" that plays fine when I have the volume at low or middle level and when I turn it up, the sub gets a large boost of power but only outputs a loud high frequency bassy hum until I...

Either your amplifier is faulty or it's not getting enough current. I think it's not getting enough instantaneous current and is unstable for that reason. check all connections and earths are tight

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Popping noise on my 12" type r subs

The subs are making that sound when the bottom out + when they reach full excursion be careful if it keeps happening eventually your subs will fail because you will end up damaging the subs voice coil.

Happy Booming

Apr 20, 2010 | Alpine Type-R SWR-1222D Car Subwoofer

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One of my kicker cvrs rattle really loud at high volumes

It could be the foam edging where the speaker meets the edge of the cone. Rubber works better than foam, and I believe kicker uses foam for this model. Check for any missing screws because sometimes air leaks make that sound you hear. also try turning down the amp a little bit

Mar 07, 2010 | Kicker CVR12 Car Subwoofer

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Subwoofer rattling.

Make sure your sub is securely screwed to your box, boot build, whatever you have it sitting in. Remember subs are made to vibrate when working, check your screws are tight.

Sep 07, 2009 | Car Speakers & Subwoofers

1 Answer

Rockford sub squeaks

Hello markwasicki,

You did not specify what type of enclosure the subs are in or if they share the same airspace. But the sound you describe sounds suspiciously like the enclosure is at fault and not the sub itself.

Remove and reverse the subs in the box and test for the noise again. If the noise is still produced on the same side of the box, it's the enclosure. If the noise follows the sub, then you have a problem with that sub.

If the box is making the noise, and it's a ported box, you probably have "port noise". If it's a sealed enclosure, you could have either an air leak or flexing noise. In either case, repair the enclosure or put the subs in a new one. If the sub itself is making the noise, there probably isn't much you can do. Most likely some part of the voice coil assembly is touching where it should not.

Hope this helps.

Apr 18, 2009 | Rockford Fosgate (P212D4) Car Subwoofer

1 Answer

High x-max vs. high sensitivity

Sensitivity is a representation of efficiency. The higher the efficiency, the better the sound quality.
Xmax is a measure of the "throw of the cone peak to peak. This is a direct representation of the volume of air the subwoofer will displace..
A High X.Max subwoofer will displace more air - and therefore produce more SPL in a vented enclosure.
Sensitivity on these subs aren't crucial, because the customer is looking for LOUD and will purchase a large class D Mono amplifier to power it - characteristically low in sensitivity as well due to the way the power is inverted. Highly efficient, yet low sensitiviy.
I am definately a basshead! My show car has (4) 15" Cerwin Vega Stroker PROs. (one of the most highly EFFICIENT high xmax subs available) (86dB). (36-44mm Xmax (adjustable for SQ or SPL)
ea141e4.jpg If you are looking for SPL, High XMax, Low sensitivity, and lots of power is the way to go. Generally, to increas SPL by 3dB, yuo must either increase surface area of driver 2x or double the input power. Slot ports, aeroports, and loaded horn ports can also increase your dB level by up to 3dB as well.
Properly constructed enclosures have an effect as well. Instead of wasting some of your power on vibrating the enclosure, it should be braced properly to reduce the wasted energy.
All of these tips will add tou your satisfaction of the product. You can make a $100 sub sound phenomenal in a proper enclosure, and a $400 sub sound like $hit in a prefab or poorly constructed one.

Your original question - with all things equal except the subwoofer, the subwoofer with the higher Xmax should yield the most SPL - due only to the fact of air displacement.

If you have additional questions or need clarification dont hesitate to ask.

Jan 15, 2009 | Car Speakers & Subwoofers

1 Answer

My subwoofer doesnt work

you mean that the SUBWOOFERS connected to the amp cuts off and come back on randomly?? did you bring the SUBS level to a high volume ? i suggest to check first the value of the speaker (ex. 4 , 8 , 16 ohms ) matches the same value with the amp . second , hows the subs connected , in series ? or parallel . you will need a multimeter for this task .

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Stops working


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Intermittent Subwoofer

the wire from the coil to post is probably might have to take the dust cap off..

this is a speaker part site

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2 Answers

Auto Sub woofer

There are several causes of distortion in an audio setup.

1) Speaker is unable to handle the frequency that it's being fed
2) The volume is too high for the speaker to handle
3) The amp can't provide enough power to drive the speaker adequately.

Either way distortion is BAD & best to be avoided unless you want an excuse to buy a new set of speakers :P

Nov 08, 2007 | MA Audio EHO152 15" 5000 Watts Subwoofer...

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