Hi there! I just ordered my first kit (the amp6) to put in something along the lines of a boombox. I want the build to be really small though, and I'm facing some challenges as I'm not that cunning in loudspeaker acoustics (but eager to learn).
The build I'm attempting will be something along the lines of 500x140x160mm (around 11 liters, including room for the amp and SLA battery). Now, I've read up as much as I can on this subject, and the common opinion seems to be that a couple of Monacor SP-60/4s and DT99s would work well in a non-vented box of about 8 liters. I was thinking, however, of adding another couple of SP-60s, either down-firing or in a bipolar setup. Mainly in order to increase bass. This is where my uncertainty begins.
Is there at all any point in adding these speakers to my design without doubling up the enclosure size (which I won't). Is there even a marginal difference in bass reproduction or will I just mess up the acoustics of the box? I tried calculating using Saturnus' boominator idea (venting, heightening the Fres and decreasing the enclosure size), but to be honest, I really can't make any sense of it in this application. I'm not that picky with super linear response and so on, I just want something that sounds relatively good and "impressive for its size".
Thank you all!