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Should I port this?


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John64 
Member - Posts: 30
Member spacespace
Joined: March 25, 2005
Location: United States
Posted: December 19, 2006 at 7:26 AM / IP Logged  

Hey guys, I just finished a nice sealed enclosure for my Alpine SWR 1521D, I have it wired to 4 ohms on my Alpine MRV 1507 (bridged). The enclosure turned out to be around 2.8 cubes after all displacement. It sounds real nice, but I would love to see what it can do ported. What would your recommendations be for port size and length? I would like to do 2 ports. The sub is facing the rear, but the ports would have to face the passengers. Your input is welcome.

Sub specs are:
Fs:23hz
Vas:98L
Qms:9.84
Qes:.4
Qts:.38
X max:16.5mm
X peak: 33mm

Should I port this? - Last Post -- posted image.

Should I port this? - Last Post -- posted image.

John64 
Member - Posts: 30
Member spacespace
Joined: March 25, 2005
Location: United States
Posted: December 19, 2006 at 7:40 AM / IP Logged  
Sorry, pasted wrong item in.^^^^^^^^^^^^^^^^^^^^^^^
jeffchilcott 
Platinum - Posts: 2,483
Platinum spacespace
Joined: April 11, 2002
Location: United States
Posted: December 19, 2006 at 9:23 AM / IP Logged  
If you were going to port the box, I would say have it fire up alone with the woofer.     Thats one powerful amp you have there, but carful not to over drive the sub!
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mike12volt 
Copper - Posts: 98
Copper spacespace
Joined: September 17, 2006
Location: United States
Posted: December 20, 2006 at 9:12 PM / IP Logged  
Alpine One of these subs would have the specs. you need. Those are just a newer version of the one you have.

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