interchangeable port

[fox_racin4]

im going to be building yet another box, but i want to have interchangeable ports one for 50hz ( burping) one around 40hz ( for bassrace or something) and one in low 30s for daily ground pounding

but i dont have much room to work with, my MAX dems are only 37w 15t and 25D im not sure how i would go about doing hte interchangable port witht e little room i have for port

i need ideas on how i would go about doin it!

[Autruche]

What kind of port? slot, round, aero?

If it's slot port then this is how I did the interchangeable port on my friend's box, if you look at the earlier pics you see how it mounts in there.

[fox_racin4]

thats what i was thinking of doing but i wont have very much room to work with

it will be a slot port /square port

but ill only have maybe 3/4" on each side

what im thinking about doing.. somehow is with no port in it will be tuned to day 50hz then when i put a port in, it will tune it to a differnt HZ

[Autruche]

thats what i was thinking of doing but i wont have very much room to work with

it will be a slot port /square port

but ill only have maybe 3/4" on each side

what im thinking about doing.. somehow is with no port in it will be tuned to day 50hz then when i put a port in, it will tune it to a differnt HZ

Make a port built in, then make a port that fits inside of the port so you can just slide it in, just recalculate the box volume to include the new sized port to figure out the correct length, but keep in mind both ports will have different areas going that route.

[fox_racin4]

im having problems trying to figure out how to hold the lower tuned port to the box becase the high tuned port is going to be pretty big