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Old 01-29-2012, 10:29 PM   #1
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Question on a removable sub?

Well today I decided to make a new center console for my YJ and wanted to run a amp and sub too. I've read a lot on here about people walking by and stealing stuff out of jeeps, so I build the console with my amp in a secret compartment in the bottom of the console. The amp is the easy part to hide were as my 12" subwoofer is not. Its not a marine sub either so I want to make it removable when the weather gets bad. So what would be a good way to lock it in place with either a padlock or some other kind of lock without having to bolt and unbolt it every time I wanna put it in and out?

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Old 01-29-2012, 11:37 PM   #2
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2 things...

1.) A marine sub is no more waterproof than a standard sub...marine equipment usually just has a coating on the electronics to help protect from oxidization due to saltwater and doesn't utilize paper for the cones. Most quality subwoofers are made of some form of rubber or poly material rather than paper. Don't get it soaked...but it'll be fine if a little rain splashes up on it. The big thing is...make sure your BOX is waterproof. MDF will soak up water like a sponge and your box will fall apart in no time. Carpet is a poor material to use in a Jeep because it won't protect the wood...bedliner, however is a great choice. Bedline your box and it'll be fine being left in there during rain showers.

2.) Make sure your amp doesn't overheat if it's sealed up in a small compartment...that could be an expensive mistake if you have a lot of money invested in it.

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Old 01-30-2012, 12:11 AM   #3
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I did notice that there isn't any major difference is subs as there is in amps but my amp is protected. Actually last summer my friend put a hole in my sub and since it was messed up I decided to try and patch it and ended up leaving out in the rain for two months in the Florida weather and it still worked great. As for mdf I could care less about that junk. I've mad two boxes out if it and two out of plywood and couldn't tell much of a difference. But would a ported box or sealed be better? I currently have the sub in a sealed box from my old truck and I can hear it fine with top off at highway speeds but would a ported sound deeper? As for the amp it doesn't even have a fan or anything so I'm guessing it doesn't get that hot but I may be wrong.
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Old 01-30-2012, 12:41 AM   #4
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I'm not a car audio pro...but IMO, I like sealed boxes. They're smaller and you get tighter bass out of em. Ported boxes I believe are supposed to be deeper...but ported enclosures also need to be bigger.

I've never used anything but MDF for any of my sub builds...but I've been told if you get into applications where you're really pounding the subs, MDF can handle the pressure put on the box whereas people have been known to blow up boxes made of plywood. I don't know how much truth there is to that...but I stick with MDF. I often use 1/2" though even though many people say 3/4" is necessary.
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Old 01-30-2012, 10:53 PM   #5
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That's weird because IMO it seems that plywood is stronger that mdf. But I'm not running a huge system and build a box out of some plywood laying around that is 1/2 inch which I think should be plenty strong. But now for some reason every time I turn my radio up I lose power to my sub. What could this be?
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Old 01-31-2012, 12:45 AM   #6
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the plywood flexes much more than the MDF will, what ever the size i always go with 3/4" MDF, its a difference if $10 per sheet over the 1/2" MDF. a sealed box requires more power to produce sound than a ported enclosure. a sealed is better for listening to rock and metal and a ported is better for rap and deep bass.

for a sub enclosure you can make it a down firing box to help hide it from people walking by that may want to take it. if not you can always bolt it down to keep it safe.

i took out my rear seats to fit my large ported enclosure in the back and purchased a bestop extendatrunk to hide it when needed
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Old 02-01-2012, 12:10 AM   #7
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Yeah I will most likely go ahead a make a mdf box and coat it with something so if water gets to it, it won't swell. But for now my wood box works fine and it's bolted down. Also my problem with my sub losing power was a loose ground.

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