Port Q that will stump the pros *PICS*

[PV Audio 5,000+ posts]

That's the volume of the port bud, the port area is only 37.5 sq in.

 

[rooneypower 10+ year member]

alright ill try to redo the box and post some pics of it later tonight.

Keep the sugestions coming

 

[rooneypower 10+ year member]

ok so ill say.... it kinda was dumb to have the port in the middle of the box. Oh well. Here is the new box. Port is same height (12.5") and length (28"), the box dimensions have changed for the port to be straight instead of curved. The subs have more room on either side of them also. I think it looks better than the old one.

A question on the 45's in the back of the port.... My 45's are 1/4" out from the corner on each side. Should i go bigger 45's or will that affect sound movement.

So wut do ya think. Is it better. Is it a better design than the original.

Anything i should do differently.

(box volume w/ out port for one side is 4.01cu ft.. I wanted a 3 cu ft per sub. Im gonna use the exttra volume for bracing on the sides. Dont need to worry about the front because im using 2 3/4" birch ply back to back. Should be strong enough.)

 

[PowerNaudio 10+ year member]

looks good.

now about the 45* angles deflector on the inside of the port. for them to be effective in the form your using them the flat face of the deflector facing the inside of the port needs to have the ports width in distance from the corner of the baffle that is helping deflect the wave or smaller. so 3" would work fine or a bit smaller, but the 1/4" corner deflector that you have is really just a waist of time and a hazard while cutting it.

also you can use a single baffle in between the ports instead of two, two will work perfectly but you can cut labor down and the size of the enclosure by a hair by just using one.

 

[rooneypower 10+ year member]

never thought about cutting the 3/4" piece....//content.invisioncic.com/y282845/emoticons/blackeye.gif.66a1670f5aaf7f406e783a63e3387dc5.gif

I guess put in 3 inch ones instead... But wont that affect the sound flow out of the ports.

 

[PowerNaudio 10+ year member]

But wont that affect the sound flow out of the ports.

it will affect the flow trough the port, it will maintain the proper 3" of port width along the full length of the port, from the outside opening of the port to the inside opening of the port.

 

[rooneypower 10+ year member]

i understand.

Is there anything else wrong with this box.. sugestions...

 

[rooneypower 10+ year member]

so i just made the thingy at the corner of my port 3" wide. I used a arch pattern with 3" maintained throughout will this work. This is better than just having a strait line there correct?? easier for sound waves to go out...

 

[Trixter 10+ year member]

i have use the curve like that in a port before and it worked well. also round the inner end of the port wall to match.

i used 4" pvc ripped lengthwise in 1/4's and countersunk short screws for mounting.

 

[iamamp3pimp 5,000+ posts]

Just make it a common box with a single port.

//content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

nG

thats what id recommend as well.

 

[rooneypower 10+ year member]

so you mean round the edges like this??

 

[Trixter 10+ year member]

yep.