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firing subs


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gcorrea 
Silver - Posts: 436
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Joined: May 22, 2004
Location: United States
Posted: January 02, 2005 at 1:23 AM / IP Logged  
im building a box for a friend using two tens in a 2003 silverado. each sub is going under each seat, but in order to keep them out of the way i need to aim them upwards toward the seats. but in order to get the correct air space the speaker woul be about 1 to 2 inches away from the cushions. will this affect the sound output by alot. all he wants is spl, and i will be porting the box.
gcorrea
jeffchilcott 
Platinum - Posts: 2,483
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Joined: April 11, 2002
Location: United States
Posted: January 02, 2005 at 4:01 AM / IP Logged  
well in all honesty if all he wants is SPL then tell him to get a new vehicle.   Make sure that you have more then enough clearence for excursion, and yes no matter what being under a seat will effect SPL.   Notice most SPL vehicles are hatchbacks or open cab vehicles
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stevdart 
Platinum - Posts: 5,816
Platinum spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spaceThis member consistently provides reliable informationspace
Joined: January 24, 2004
Location: Pennsylvania, United States
Posted: January 02, 2005 at 8:20 AM / IP Logged  
You need at least the diameter of the port in distance of the port opening to any object, so 2 inches won't make it.  And downfire would be preferable to upfire. 

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