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to port or not to port


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08canyon 
Member - Posts: 24
Member spacespace
Joined: December 02, 2009
Location: Michigan, United States
Posted: December 10, 2009 at 4:50 PM / IP Logged  
I have decided on an RE Audio SL12 slim sub. I know some of you folks don't think to highly of slim or shallow subs, but I have very limited room and I'm gonna go for it. My question is, should I build a sealed or ported box? Which will give the best possible bass response? I listed to primarily rap/hip-hop as well as country (what a combo, eh?). I will be pushing approximately 400 watts to the sub if that makes a difference. Thanks again
-josh
blackcivichatch 
Copper - Posts: 229
Copper spacespace
Joined: January 27, 2009
Location: Missouri, United States
Posted: December 11, 2009 at 3:22 AM / IP Logged  
A ported is gonna give you better output for your rap, But since you say you Are limited on space.. You may not have the desired room to build an optimal ported enclosure. Check RE's site and see how much air space that particular sub wants for a ported box. And if you can supply the room, Go for it.
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DYohn 
Moderator - Posts: 10,741
Moderator spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spacespace
Joined: April 22, 2003
Location: Arizona, United States
Posted: December 11, 2009 at 1:33 PM / IP Logged  
RE says you can use either alignment.  Realize a proper vented enclosure will be twice the physical size of a proper sealed one.  If you can make 1.75 cuft fit your space, go ported.  Otherwise target 0.75 cuft sealed.  And those drivers list a thermal power limit of 350 watts, so if you plan to use all 400 watts of your amp you will be better protected from frying your sub in a sealed alignment.
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singlecabslamin 
Member - Posts: 25
Member spacespace
Joined: December 08, 2009
Location: United States
Posted: December 12, 2009 at 4:02 PM / IP Logged  
u have limited room u say well ive got a power accoustic mofo in a 2.3 cube ported box behind my seat of my ford f150 and still have plenty of room in the truck so just think a little bit more before u think u have to go with a shallow sub cuz if u build the box right u can get the required airspace and still have room with a bigger sub
First major build for myself in the process
j.reed 
Copper - Posts: 716
Copper spacespace
Joined: January 05, 2009
Location: Arkansas, United States
Posted: December 12, 2009 at 5:39 PM / IP Logged  
singlecabslamin wrote:
u have limited room u say well ive got a power accoustic mofo in a 2.3 cube ported box behind my seat of my ford f150 and still have plenty of room in the truck so just think a little bit more before u think u have to go with a shallow sub cuz if u build the box right u can get the required airspace and still have room with a bigger sub
This is not a full size truck we are talking about here.
to port or not to port -- posted image.
08canyon 
Member - Posts: 24
Member spacespace
Joined: December 02, 2009
Location: Michigan, United States
Posted: December 12, 2009 at 8:51 PM / IP Logged  
j.reed wrote:
singlecabslamin wrote:
u have limited room u say well ive got a power accoustic mofo in a 2.3 cube ported box behind my seat of my ford f150 and still have plenty of room in the truck so just think a little bit more before u think u have to go with a shallow sub cuz if u build the box right u can get the required airspace and still have room with a bigger sub
This is not a full size truck we are talking about here.
Ya... It's really a "Mid-size", bigger than an S-10, smaller than a Silverado. I'm over 6' tall and I cannot afford to lose any seat travel. I have a max enclosure size in a wedge configuration of 50" Wide x 14.5" Tall x 4.5" Top Depth and 8" Bottom Depth. Using 3/4 MDF, this gives me approximately 1.7ft3 internal Vb. Mounting depth of a sub can't be more than 4.5-5" or it'll hit the back of my enclosure. Heck, if I didn't need a passenger seat, I'd just put in a 15" RE Audio XXX smack dab in the middle of the floor! LOL!
-josh
blackcivichatch 
Copper - Posts: 229
Copper spacespace
Joined: January 27, 2009
Location: Missouri, United States
Posted: December 13, 2009 at 2:47 AM / IP Logged  
Haha, How serious are you about your bass??
I understand you cant loose one of only 2 seats, But wut about a little bit of space in the bed?
I think you get where I'm goin with this... lol
UNLABELED Custom Car Club President
08canyon 
Member - Posts: 24
Member spacespace
Joined: December 02, 2009
Location: Michigan, United States
Posted: December 13, 2009 at 2:40 PM / IP Logged  
blackcivichatch wrote:
Haha, How serious are you about your bass??
I understand you cant loose one of only 2 seats, But wut about a little bit of space in the bed?
I think you get where I'm goin with this... lol
I had to lock up my cordless Sawzall! Too tempting! LOL!
blackcivichatch 
Copper - Posts: 229
Copper spacespace
Joined: January 27, 2009
Location: Missouri, United States
Posted: December 13, 2009 at 5:51 PM / IP Logged  
HAhahaha. I've seen it Go VERY well, and I've seen it go VERY badly..
If you know wut you're doin, i would go for it man.
On the other hand, I have also head alot of behind the seat boxes sound pretty good.
If the 1.7 cuft is enough space for a ported box, thats wut i would do.
UNLABELED Custom Car Club President
maxius 
Member - Posts: 1
Member spacespace
Joined: December 15, 2009
Location: Australia
Posted: December 15, 2009 at 11:32 PM / IP Logged  
08canyon wrote:
I have decided on an RE Audio SL12 slim sub. I know some of you folks don't think to highly of slim or shallow subs, but I have very limited room and I'm gonna go for it.
-josh
Hi Josh
I'm in a similar boat, but I chose a Memphis 15-SC12D4 sub instead of the RE. I'll be putting this into a 1 cubic foot sealed fiberglass enclosure, which i'll start building soon. :)
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