Personally, I’ve tried using the DSpeaker Antimode 803 with a system built around a pair of professionally rebuilt Quad57’s. The speakers were close to walls, and the room was small, and the system had plenty of base. The Antimode definitely cleaned up the bass, tightened it up, but it also reduced transparency to the main speakers That bothered me, and I did not keep it. For you, it will depend on the current quality of your bass, and the balance in value between tightening the bass and losing a tad bit of transparency. In a square room, it could do a better job then acoustic treatments.
You can try tidal for the first month for free. But you have to be on board with spending $20 a month for music if you like it.
As for electrical. That can be a cost-effective upgrade if there are clear and easy path from your circuit breakers to your room. If that’s the case, like if you have a basement and it’s easy to run new circuits, it can be pretty inexpensive to run a couple dedicated circuits for you audio system. Electricians are pretty good at fishing things through walls, but reasonably easy routes need to be there to make that work.
