Port dimensions, need help!

[eskii 0]

I'm currently trying to design an enclosure for 3 Bl 10's i've got 1.85cu.ft of volume (total), with displacement. What sort of port area and length would i be looking at.

Also, i can increase the volume slightly, as that is with 1inch MDF

[streetbeater07 0]

winisd.......but i dont think thats going to be enough airspace for what you are trying to do. may work better with just two tens?

[streetbeater07 0]

I'm currently trying to design an enclosure for 3 Bl 10's i've got 1.85cu.ft of volume (total), with displacement. What sort of port area and length would i be looking at.

Also, i can increase the volume slightly, as that is with 1inch MDF

Have you already subtracted driver displacement?

[eskii 0]

yeah, been playing with it abit. Got about 2.1 cu.ft for volume now, and yes, it's with driver displacement

[streetbeater07 0]

what are your max dimensions?

[eskii 0]

it's for a slanted box. 34.25 W 18 H 9.5 Top D 13.75 Bottom Depth

[streetbeater07 0]

12-16 sq.in. of port area per cubic ft. of volume... so around 24-32 sq. in. on your port area and make sure you keep the port length to width under 9:1 so your first measurement on your port would be 16 height if you run the port the height of the box subtracting 1 inch for your bottom plate and 1 inch for your top plate.....and your port width should be 1.5 to 2 inches wide, if calculated by the 16 inch tall port, (port area=port height x port width) depending on how much area you decide to go with, and the length will depend on your tuning frequency...hope this helps.