Astute question.
Again... it really depends on your goals. I'm not going to try to sell you something you don't want!
If you listen to music with a critical ear, you will find much better speakers if you want. If you don't, as I said before, you might not need to worry about this.
Personally, I would not press an upgrade if there is no reason for it. if you are concerned about SQ and you feel there is something missing, then I suggest doing some basic research on what you might want. This would involve reading subjective reviews, and trying to find speakers to listen to. The latter is the most important... and properly coupled with the former, it will help you form a knowledge base of what descriptors are used for certain gear, why, and what that means to your ears.
Taken a step further, most reviewers will compare the gear that they are reviewing to other product in the same category; sometimes a step up or below, too. Using those comparisons in conjunction with auditioning gear, grows your knowledge base considerably.
If you have only heard KEF (for example), you might never question what else might be out there... until one day you hear something like Monitor Audio, or RBH... Suddenly you find yourself noticing,
perhaps, that the midrange of your speakers is somewhat strident whereas this new speaker sounds totally different.
KEF makes some very nice speakers by most accounts. I think there are better still for the same price point.
Hope that makes sense.
