Stuffed enclosure volume for boom box

[hospadar]

I'm building a little boom box and I'm curious about enclosure size. As this will hopefully be portable, I of course want it to be as small as possible.

I understand that stuffing the enclosure increases the effective size of the enclosure, but can anyone give me a ball park estimate on how much?

The boom box is (going to be) made from 3" pvc using hivi b3n (the round mount version of the b3s) drivers. Size experimentation will be pretty easy, but I'd like to have a decent starting point for adjusting the recommended enclosure volume (of 2L). This will be a sealed enclosure.


Thanks for the help

 

[Matei Alin]

https://www.madisound.com/store/product_info.php?manufacturers_id=148&products_id=1323

 

[GM]

In theory, ~1.4x, but the reality is it varies: Sub Box Polyester Fiberfill

GM

 

[IG81]

If it can be indicative of anything, a pair of 28 liters enclosures I made measured closer to 36 liters once stuffed. So almost 1.3x in my case.

IG