Sundown Audio Sa-15 Box

[dannyjdm]

This is my first time designing a box. I have a Sundown Audio Sa15 d2. I currently have it in a pre fab box which is horrible.

The new box I designed is an L-Port with demensions 17x32x17 using 3/4" wood. The port is 15.5x3x30. According to Torres its tuned to 32hz and has a net volume of 3.23ft^3. Do you guys have any suggestions or is there anything wrong with the box?

[Joe X]

The inner end of the port is stuck at the corner on 30" length, your port area could be larger, also your net volume, that is, if you are not heavily overpowering the sub, also you don't say what vehicle is it.

[dannyjdm]

It is a 2001 Honda Accord Sedan. The sub and port are going to be facing into the cab and I have the back seats folded down. So you think my port should be longer? Or should it be wider?

[dannyjdm]

Also I am running a 1200watt Hifonics Brutus and it is powering the sub at 2ohm. Which is about 900watt

[dannyjdm]

The inner end of the port is stuck at the corner on 30" length, your port area could be larger, also your net volume, that is, if you are not heavily overpowering the sub, also you don't say what vehicle is it.

what do you mean its stuck at the corner?

[Joe X]

Here is a suggestion, power: to sub(s) rated, amp subsonic filter to 28Hz, minimum port clearance 3 1/4", figure is just an assembly guide:

NOTE: If building outside you need to build a cardboard dummy box to test fit in it's way inside.

So that you know, the center line length of the port is 34 1/8". Regarding your question, the internal end of the L port must stay at least twice it's width from the side wall so that it's not choked or tunes lower than expected.

[dannyjdm]

Here is a suggestion, power: to sub(s) rated, amp subsonic filter to 28Hz, minimum port clearance 3 1/4", figure is just an assembly guide:

NOTE: If building outside you need to build a cardboard dummy box to test fit in it's way inside.

So that you know, the center line length of the port is 34 1/8". Regarding your question, the internal end of the L port must stay at least twice it's width from the side wall so that it's not choked or tunes lower than expected.

You are Awesome thanks bro! I'll be building it soon thanks for the help! How do I round the edges? By sanding them down or is there a more efficient way?

[Joe X]

You're welcome. If you don't have a router, sanding is the way to do it, just try to get it done as nice as you can.

[AstoSoup]

Also, if you are going to face the sub and port into the cab of the car, it won't sound all that great without sealing it probably. Pressure will escape into the rear trunk area, behind the box and cut the output of the sub down a lot. Best way to front fire is to wall the box off (seal around the space around the box). I'm sure someone else could explain or elaborate on this better than I, but rear firing would be the best way to go if you don't want to do a wall.