CONKLE73 Posted August 21, 2018 Report Share Posted August 21, 2018 Hello, I used to be into car audio back in the 90s and always used sealed enclosures in my vehicles so my knowledge of ported enclosure design is limited. I currently have 2 Boston Pro Series 10.5lfs in a sealed enclosure firing down under my 2nd row seats in my 2003 Z71 Tahoe (I have no 3rd row seats)… they sound good, nice and tight, but I miss the low end… So, I’m planning on installing two Sundown SA 12s to give me the lows I’m looking for… My cargo area is 48” wide so I would like the enclosure to be 48” wide so it fits between the sides of the interior panels as no to slide around. I looked on Sundown’s website but all of their ported enclosure designs are only 38” wide. I will be powering these with a CT Sounds T-1500.1 Any help with a good design for these subs in my application would be appreciated. Link to comment Share on other sites More sharing options...
DiBo Posted August 21, 2018 Report Share Posted August 21, 2018 I got you... Give me 5 min. Link to comment Share on other sites More sharing options...
DiBo Posted August 21, 2018 Report Share Posted August 21, 2018 14x48x18.25 sub up port back Port 12.5x4.75x24 1 extra baffle .28 woofer displacement .10 corner 45° displacement 59.38² in Port area 14.81 per foot 4.01ft³ tuned @34.90hz... hold up!! Wrong will post new design. Didn't account for second baffle Link to comment Share on other sites More sharing options...
CONKLE73 Posted August 21, 2018 Author Report Share Posted August 21, 2018 3 minutes ago, DiBo said: 14x48x18.25 Port 12.5x4.75x24 1 extra baffle .28 woofer displacement .10 corner 45° displacement 59.38² in Port area 14.81 per foot 4.01ft³ tuned @34.90hz Extra baffle as in a stiffening support? Link to comment Share on other sites More sharing options...
DiBo Posted August 21, 2018 Report Share Posted August 21, 2018 3 minutes ago, CONKLE73 said: Extra baffle as in a stiffening support? 2 sheets up top for your subwoofer cutouts got new correct dimensions... Link to comment Share on other sites More sharing options...
DiBo Posted August 21, 2018 Report Share Posted August 21, 2018 14.75x48x17.25 12.5x4.75x24 port [email protected] hz sub up port back two top sheets Link to comment Share on other sites More sharing options...
DiBo Posted August 21, 2018 Report Share Posted August 21, 2018 You can put the port to the left, the center or the right side, it stays the same. I could draw a detailed plan but it would have to be later tonight I don't have SketchUp Link to comment Share on other sites More sharing options...
shredder2 Posted August 21, 2018 Report Share Posted August 21, 2018 Ol' design I had for a Tahoe... it's for a 1.5K amp HMU if you're interested... it's got a lotta extra components that'll need to be put in tho for that volume/tune. Link to comment Share on other sites More sharing options...
CONKLE73 Posted August 21, 2018 Author Report Share Posted August 21, 2018 3 hours ago, DiBo said: You can put the port to the left, the center or the right side, it stays the same. I could draw a detailed plan but it would have to be later tonight I don't have SketchUp Awesome… thanks… Let me ask… in your opinion would it be OK to go with the lower end of the volume recommendation from Sundown at 1.5cf per sub? I ask because I’d like to retain as much of my cargo area as possible. As I understand it to bigger you go with the volume the more “muddy” the bass response can be… not that 2cf would be “muddy” for these subs, but if going with 1.5cf per sub allowed me a little more cargo room without sacrificing too much sound I’d be interested in that. Also, what do you think about the port facing up and the subs facing rearward? Link to comment Share on other sites More sharing options...
shredder2 Posted August 21, 2018 Report Share Posted August 21, 2018 3 hours ago, DiBo said: You can put the port to the left, the center or the right side, it stays the same. I could draw a detailed plan but it would have to be later tonight I don't have SketchUp Going from a 2 common wall port to a 3 common wall port will change volume/tuning in my experience (center/right or left side). Link to comment Share on other sites More sharing options...
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