Question about Kenwood KFC-W2512 Car Speaker

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I own two of these subs. i have a dual 10 inch box. but i keep blowing one of the subs in the same spot in the enclosure. Or in other words, the sub on one side of the box doesnt blow but the sub on the other side always does. The gains are set properly and as far as my knowledge goes everything else is hooked up correctly. What could be causing this?

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It may not be the box it could be that channel on the amp or the wiring of that channel double check the channel your using on the side that blew...

Posted on Feb 05, 2010

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12 inch sub(JBL) in box with a 500 watt pioneer amp, sounds good with some types of base. would you cut a port hole in speaker box?


riverray1969 it would help if I knew the exact model number of that JBL sub you are referring to. With that info I can provide exact specs.


Basically, you need to build/modify an sub enclosure that is suited for the sub, the music you mainly play, and vehicle tuning. Generally, sealed enclosures will provide tighter bass response and get decently loud. Some would argue that it will give you greater sound quality. A ported enclosure will give you a louder more booming sound. That depends also on where the port is tuned (ex. 32 hz, 36 hz, etc ). You need to make sure that the enclosure meets the sub's airspace requirement as well. A customized well made enclosure is just as important as the sub you put in it.

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1 Answer

What would be the ported enclosure airspace requirement for a dynex 10" sub?


For optimal performance there is really only one size for the box .Firstly, you get two different types of subwoofers, an open air, or closed air sub. If it is an open air sub ( hole with mesh in the center of the magnet) no ports are required, and the box should be sealed on the inside with silicone sealant. If it is a closed air sub ( no hole in the magnet) you need a 50mm port about 120mm long. Box size will be 11 inches x 11 inches x 11 inches. Hope this helps

Feb 25, 2011 | Dynex 10" Single-Voice-Coil 4-Ohm...

1 Answer

What size enclosure is recommended for 2 10" kenwood tornado subs?


If it is an open air sub ( hole with mesh in the center of the magnet) no ports are required, and the box should be sealed on the inside with silicone sealant. If it is a closed air sub ( no hole in the magnet) you need a 50mm port about 120mm long Box size will be 11 inches x 11 inches x 11 inches

Apr 19, 2010 | Kenwood 2 10 " SUBS SUBWOOFERS 500W POWER...

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I need to know the demensions for 10 inch subs


almost any 10 will use .75 cubic feet up to 1.25 cu ft. thats about the size of a milk crate give or take. a sealed box will give you the cleanest tightest bass. A ported box will be louder but also larger at the cost of decreased power handling ability and sound quality. If your subs are designed for small enclosures use a sealed box around .75 to 1.00 cu ft.

Jan 30, 2010 | Koiiler XM-6715 Car Subwoofer

1 Answer

My subwoofers ''fight'' each other


YOU ARE CONECTING ONE OF THE SUBS ON THE INCORRECT MODE SO DISCONNECT ONE OF THE SUBS AND SWAP THE WIRES AND TRY.

Mar 23, 2009 | Car Audio & Video

1 Answer

What is the sealed and ported box volumes for the audiobahn dub 200 subs?


If you can access the inside of the sub box by removing the speaker, you may be able to measure the 3 dimension of each side of the enclosure.  1 cubic foot is 12x12x12 inches cubed.  That is 1728 cubic inches per cubic foot.  If you measure the inside dimensions of one of the enclosure sides as 10x14x8 inches, then that is 1120.  1120 divided by 1728 is 0.648 cubic feet.  Alternatively, you could estimate the volumes of each side of the box by measure the outside, figuring out where the box divider board is, subtracting the width of the boards used to make and then calculate.  Otherwise, I do not know the enclosure that that sub comes in.  Good luck.  Let us know how it goes.

Jan 02, 2009 | AudioBahn DUB200 Car Subwoofer

1 Answer

Finding a good box for the sub


< I design sub enclosures for a living so you are in luck. > The one thing to remember is that generic sub boxes are just that - generic. Even if they have a fancy brand name, unless they are built for the sub you are using you will be making a guess as to how well it works. Don't get me wrong though it may work well in that band pass box, but just imagine how much better it could sound in a custom enclosure. Having said that you have the right idea, and bandpass enclosures can be power-full. If you send me (dynami28@charter.net)
the specs that came with the sub I can give you an idea of what kind of box you should get or, if you want to build your own, I can do the specs on that too. Personally I stay away from bandpass enclosures for one reason. When the subs distorts or gets pushed too hard you can't hear it happening. Since the sub is completely enclosed it's somewhat muffled or insulated so that distortion is hard to hear, which can blow up subs. A good ported enclosure would do well and basic plans should be on Lanzar's website, or available from myself. I do not recommend a sealed enclosure unless these subs will see light duty and you don't expect ground shaking bass. They can sound okay in a sealed box but most car audio enthusiasts like the ported boxes for their increased output and lower tones. Email me if you can't find the specs on those subs I might still have them on file. (Also the enclosure should be at least 3/4" thick MDF with bracing throughout.)
-Dynami

Dec 23, 2008 | Lanzar (Pair) MAXP104D Max Pro Series...

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