Areo Port noise!

[Cali_Screw 10+ year member]

So i built a box for my two 10" LA storms. The box size after displacement is 2.5 and suppose to be tuned to 32 hz. I have two 3x12" in length areo ports with exiting flare on it but not the entering flare on it for inside the box (no room). Now on some notes i get alot of port noise, does this mean i need more port area?

thanks

Click to read more...

 

[subzero 5,000+ posts]

yup why not just do a slot port? check out this website... RE Enclosure Calculator

 

[rosshimself13 10+ year member]

the inside flares would have reduced port noise as well. maybe just try to plan everything out first before you build? it seems logical

 

[Slo_Ride 5,000+ posts]

So i built a box for my two 10" LA storms. The box size after displacement is 2.5 and suppose to be tuned to 32 hz. I have two 3x12" in length areo ports with exiting flare on it but not the entering flare on it for inside the box (no room). Now on some notes i get alot of port noise, does this mean i need more port area?
thanks

Yes. I'd try two 4" ports.

 

[Cali_Screw 10+ year member]

the inside flares would have reduced port noise as well. maybe just try to plan everything out first before you build? it seems logical

no room for end flares inside the box, this a a under the seat enclosure and it tappers down in the back.

 

[Cali_Screw 10+ year member]

yup why not just do a slot port? check out this website... RE Enclosure Calculator

Not enough room to add a slot port into the box.

 

[Bumpin' Goalie 10+ year member]

How much room in between end of port, back wall?

 

[LilJ29 10+ year member]

the port noise is because both ends of the ports arent flared. I read somewhere that that causes problems with the pressure cylinder of air going through the ports. I wish i could explain it scientifically, but thats what I read.

 

[Cali_Screw 10+ year member]

How much room in between end of port' date=' back wall?[/quote']
about 3-4 inches

 

[Cali_Screw 10+ year member]

the port noise is because both ends of the ports arent flared. I read somewhere that that causes problems with the pressure cylinder of air going through the ports. I wish i could explain it scientifically, but thats what I read.

Yea i read not having end flares will do this, but they will not fit one bit //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif

 

[GetLikeMe 10+ year member]

Why not buy corner knuckles and extend the port sideways which will allow to add the end flare

 

[RAM_Designs 5,000+ posts]

Do you have room to cut the end flare down a little and still be able to use it?...little flare is better than none.

 

[rosshimself13 10+ year member]

or elbows... Dayton PT3-MFE 3" Male To Female Elbow | Parts-Express.com

i have seen similar boxes use odd shaped ports firing to the side..

 

[Cali_Screw 10+ year member]

Do you add the elbow to the length of port for tuning?

 

[DarkScorpion 10+ year member]

Why not buy corner knuckles and extend the port sideways which will allow to add the end flare

or elbows... Dayton PT3-MFE 3" Male To Female Elbow | Parts-Express.com
i have seen similar boxes use odd shaped ports firing to the side..

x2 - this is what I would do. Try adding flares to the inside.

Do you add the elbow to the length of port for tuning?

Yes.