You're just not going to be able to learn without listening. It's an experiential hobby, there's no objectively best solution that works for everyone. We've all got ears that are sensitive to different weaknesses and brains that enjoy different strengths. And we like different types of music that differentially are affected by both.
The proposition of moving from a Bluetooth speaker to an all-out-assault system is akin to only having driven a go-kart and then buying a McLaren or something.
There's no similarity except they both drive. And you'll probably just wreck the new car the second you touch the gas. Or accidently put basic gas and oil in it and ruin the engine.
Similarly, without the experience of listening and setting up a stereo system on your own, hearing how much the little things change, you're going to end up with a very expensive thing that isn't really working as designed. And maybe isn't even the type of system you'll enjoy.
To go back to the car analogy, if you don't know anything about cars except that they drive, you could easily buy something very fast that's designed only for straight line speed, when what you'd really enjoy more - based on your still undeveloped driving style - is something designed to be incredibly agile. How could you know when you've got no frame of reference?
After moving to a new house I've been working on getting my system setup properly -- without buying a single new component -- for a year and a half. And I'm still extracting more from it every time I make a change -- to the room, the component location, the component supports, the speaker angle, subwoofer locations, subwoofer digital correction, etc, etc, etc.