I have 2 15" subs. Is it possible for a sub to have 3.5 cu sealed and 2.25 cu ported? I have never heard of that. The sub box shows a 2.25 cu with a round port 5in dia by 7.07in length. How do I figure out the frequency it is tuned to?

 

If the sub's motor is designed stiff enough, its possible. But where are you getting your info?

 

it's an Orion C15d4 200 watts rms 400 max

here is the spec sheet

http://www.orioncaraudio.com/Support...al%2027026.pdf

 

your tune would be around 43-45hz tuned with that spec

 

yeh looks like they have given specs for a daily with slightly reduced output on the ported side in exchange for a flatter response curve(more accurate sound).

 

I'd stick with a sealed enclosure in that case.

 

Yo you gunna pick up thems peakers today?