Probably what’s going to prevent me from doing it is finding the right speaker. I’d like to go really small, like a 6” bass speaker. That may not even exist. An 8” Bass guitar speaker would need at least a 10” radiator because the radiators are supposed to be bigger than the driver.
I just might really go cheap and make a big MDF box for the existing speaker in my combo amp. I’ll remove the stock speaker and might just put it in a big sealed enclosure without the radiator.
The last thing I need start is another project but the way these things are built bugs me. I’m almost certain I can make that little rig sound better with the speaker properly installed in a big solid box. I could experiment with sealed vs ported, too.