Good question,
my instincts are: only in a small space, i.e. 10 x 12.... like an office, den, ..., but not enough power/enough volume for a large space where the listening position is likely to be further away.
Combining with a self-powered sub or two subs combined could work in a larger space.
You need to get the bass load off the amp, so it only needs power for upper bass/mids/highs which need much less power than low bass.
That means line out of the amp to the sub(s), then line minus low bass from the sub(s) back to the amp. Now, amp receives no low bass, doesn’t need power for that, AND the small speakers do not have to make low bass, thus they probably will sound better.
small space, I would probably use one in-expensive sub, just to get the load off the amp and add just enough bass so the main speakers do not sound small. Unaware of sub until you turn it off.
larger space, a stereo pair of self-powered subs, better quality, front firing, located adjacent to the mains. Very low bass may start mono, but the overtones quickly become directional.