Building a “sub box” for small studio monitors?
Not sure if it’s the right place to ask but it made sense to me to post here lol basically the situation is this, myself and a couple of my friends like to hangout and DJ sometimes, nothing professional, just a couple homies and a FLX4. I have a pair of older JBL LSR 305s that I’ve been using as our party speakers and they honestly work great, indoors they get plenty loud and the bass is pretty thumpy for how small they are, the issue is last time we all hung out we were in my friends backyard and I’m sure you can guess but when we set up the monitors they had completely lost all of the low end punch, that is until I moved them to under the table we had set up and some of that low end came back, and it got me thinking maybe I could fabricate a plywood box for them to live in that would help resonate lower frequencies like how you would make a subwoofer box for your car? I have very minimal knowledge when it comes to things like this but myself and one of my friends enjoy projects like this and making things with our own hands so before we jump into it head first I figured it’d be better to ask around lol what do yall think? Is something like this feasible or would it completely ruin the top end? Have any of you tried anything similar to my idea? I know there’s a few sites that can help with dimensions and stuff for subwoofer boxes but most that I’ve seen are really only catered to car systems where it’s basically a naked sub so idk if those will work at all for what I’m trying to do. Anyways thanks for reading my rambling, any advice is appreciated :)