Help with port area

[klaxxi]

Hello. So i have 2x15 b2 audio hn v3 subwoofers and soundigital 5000 amp.

im trying to figure out which aeroport to put in the box, box is around 250 litres.

should i use 8 port or 2x6? or is 1 6 inch port good? i would like it to be tuned under 30ish

[Joe X]

Just going by the subs manual for each subs you need 121  liters and 41,2 square inches of port area tuned to 30Hz

 

So the box need to be 242 liters net and 82.4 square inches of port area at the same tuning.

 

So how you get 82.4 square inches with 6" round ports, one 6" round port is 28.2 square inches and 3 are 84.2 almost exactly what is needed so:

 

3 6" round ports is what is needed according to manufacturer specs based in a 242 liters box and rated power.

 

Since you are overpowering you probably need more port area but at least you do need 3.

[klaxxi]

On 8/18/2023 at 1:46 AM, Joe X said:

Just going by the subs manual for each subs you need 121  liters and 41,2 square inches of port area tuned to 30Hz

 

So the box need to be 242 liters net and 82.4 square inches of port area at the same tuning.

 

So how you get 82.4 square inches with 6" round ports, one 6" round port is 28.2 square inches and 3 are 84.2 almost exactly what is needed so:

 

3 6" round ports is what is needed according to manufacturer specs based in a 242 liters box and rated power.

 

Since you are overpowering you probably need more port area but at least you do need 3.

okay thanks