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Decent Fiberglassed Ports?


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dubdpt 
Member - Posts: 11
Member spacespace
Joined: November 13, 2006
Location: United States
Posted: November 24, 2006 at 10:05 PM / IP Logged  
Hello all.
Im getting ready to fiberglass my first box, and I was wondering what you all do to make ports look decent after fiberglass? Ive seen some ideas with PVC ports and then you can use covers, but I would prefer something a bit different.
Kinda tossing ideas around before I spend a bunch of money and hate the project and have to start over. Thanks alot!
master5 
Silver - Posts: 1,123
Silver spacespace
Joined: October 10, 2006
Location: United States
Posted: November 24, 2006 at 10:22 PM / IP Logged  

I am not a big fan of covering ports..it can effect the sound. I have a formula for converting round ports to any shape but if you can find a program to do this you will be alot better off..the math is insane.

Some cool things can be done with acrylics and LEDS, backlighting, plexi etc.

How about polished stainless? Maybe you can get some large stainless tubing scraps from a high performance shop and polish it, I have not seen that before. You could have it bent into a cool shape maybe, or experiment with flaring..well your imagination is the only limit.

dubdpt 
Member - Posts: 11
Member spacespace
Joined: November 13, 2006
Location: United States
Posted: November 24, 2006 at 10:34 PM / IP Logged  
I appreciate the fast reply.
Kind of a noob question, but do i need to point the ports in the same direction as the subs? If not I could port them out the back of the box and then not have to worry about the look of them. I was thinking of using some grille mesh people use on their body kits, maybe paint it and make a nice surround for it, but the box will be painted and that would kill the look.
Thanks again.
maliboom 
Copper - Posts: 111
Copper spacespace
Joined: October 27, 2006
Location: Canada
Posted: November 25, 2006 at 3:38 PM / IP Logged  
The ports should be on the same plane as the subs otherwise cancellation becomes an issue. Using plexi adds a nice look as a border with some led accent lights.
dubdpt 
Member - Posts: 11
Member spacespace
Joined: November 13, 2006
Location: United States
Posted: November 25, 2006 at 10:29 PM / IP Logged  
hmm...getting some ideas.
I appreciate the answers and I hope some more people can chime in and help
Thanks again!
maglin 
Copper - Posts: 206
Copper spacespace
Joined: June 30, 2004
Location: United States
Posted: November 26, 2006 at 12:00 AM / IP Logged  
ah... if you give me the math, i can plug it into a simple flash based calculator...
maliboom 
Copper - Posts: 111
Copper spacespace
Joined: October 27, 2006
Location: Canada
Posted: November 26, 2006 at 12:59 PM / IP Logged  
What subs are you using and air space is the box and if you draw a simple sketch of what you want it to look like. This sort of info can give everyone an idea of what your after and help you design the port in detail. If Maglin does the math on the size don't forget to add if you want a slot port, round port, or horn port. All these are important to a decent sounding box. Good luck and I'll check back later.
dubdpt 
Member - Posts: 11
Member spacespace
Joined: November 13, 2006
Location: United States
Posted: November 26, 2006 at 2:33 PM / IP Logged  
this is what i have now....
Decent Fiberglassed Ports? -- posted image.
I want to take up all the space in the rear. The subs are xtant 104s
The box i have now, built per xtant specs, sounds really good. Its tuned to around 28hz but I have slight port noise if you listen to the subs from the back of the car.
I would like to do some slotted ports, that way i could put them on the bottom of the box where they wouldnt really be noticeable. I want the box to come close to the top of the rear seats.
My plan is to build the boxes for the subs separate and then build the fiberglass around them. Sound is very important in this build, that is why I am choosing to do it that way. I also want to flush mount the amps facing the rear of the car.
Im going to paint the box the color of the car.
Im a painter so the body work isnt an issue.
Thanks for the helps guys, maybe this will point you more in the right direction.
maglin 
Copper - Posts: 206
Copper spacespace
Joined: June 30, 2004
Location: United States
Posted: November 26, 2006 at 2:34 PM / IP Logged  
*shakes his head* i still need the formulas. i can make a simple sort of program to calculate everything based on different options without any trouble, truthfully. i'd be happy to put a little back into this site by making it.
dubdpt 
Member - Posts: 11
Member spacespace
Joined: November 13, 2006
Location: United States
Posted: November 26, 2006 at 2:35 PM / IP Logged  
Dont know how to edit a post on here. But I have even thought about cutting that box in half, putting sides on it and using it as a base for the rest of my box.
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