Do you have a large room?
Or put another way do you find you ever play your speakers in a way they sound really quite loud?
If you do then you are probably runnning into the limitations of an excellent great value design. Small voice coils quickly get hot (small surface area) - so you'll soon run into a kind of wall of compression/crossover drift and Xmax issues where the reality is that it just doesn't get any louder and just loses that effortless dynamic punchy sound and becomes congested. (Although you will perceive this as simply being extremely loud due to the dullness from compression and distortion. So you will tend to "think" it is just way too loud.) Anyway, if you do then consider upgrading.
Do you ever struggle to ever hear the individual notes in a bass riff clearly behind the drums?
If so then also consider upgrading.
Otherwise you are probably fine with what you have...