Double 3" + passive radiator enclosure size

Hi there,

This is my first post and first time trying to build a complete speaker from scratch.

I have embarked on a new project to build a sort of transportable speaker. So it should be able to easily fit in a backpack.
For that reason I chose the Dayton Audio DMA80-8 3". I want it to pack a bit of power so my idea was to put 2 of those and the corresponding Dayton Audio DMA80 PR3 passive radiator.

I am having a hard time finding resources on how to calculate the right box enclosure for this setup though.

So I have 2 questions :
1. Is this design worth it ? (2 full range + 2 PR)
2. How should I go about calculating the enclosure size ?

Thanks a ton for your help!
 
Last edited: