SA10 V1 D4 ported box help

[timc31610]

Good afternoon everyone. I have 2 SA10 V1 D4, both of my daughters want some bass so I thought I would build them both a box for their cars. I am looking for the flattest response I can get and both of them will be will be running a Skar RP-1500 at 2ohms. Could anyone lend a hand with a quick design? If it matters 1 will be going in a 2010 BMW 328i sedan and the other will be in a 2010 Civic coupe. Thank you in advance!

[Joe X]

The flattest possible response inside a car comes from a sealed enclosure, 0.6 cubic feet net per driver or so should work fine.

 

You don't need to build them, high quality prefabs of the correct volume can do the job.

 

 

[timc31610]

Thank you Joe, I understand sealed would be optimal. I should have stated that I wanted the flattest response from a ported enclosure. A friend suggested 1cf with 17 in square port area at 35hz. That sounds great, but I cant find Torres btc to calculate the port length.

[Joe X]

The SA-10 in a 1 cubic feet ported @35Hz is peaky and loud (orange plot), 0.5 cubic feet  sealed (yellow plot) is flat (but silent):

 

 

 

Using heavy damping you can make it less peaky as you can see:

 

 

 

The box itself can be like this:

 

 

 

 

[timc31610]

Awesome, thank you Joe X!