These sit in different price classes - Kanto YU2 costs roughly 2x what Mackie CR3-XBT does. Expect it to lead on paper; the question is whether the gap is audible enough in your room to be worth it.
| Area | Better | Why |
|---|
| Bass |
evenly matched |
Much the same reach (80Hz vs 80Hz). |
| Built-in power |
B |
Kanto YU2 has the bigger amplifier (50W vs 25W RMS). |
| Connections |
A |
Mackie CR3-XBT adds Bluetooth. |
| Size |
depends |
Kanto YU2 is easier to place; Mackie CR3-XBT is bigger, which usually goes with fuller bass. Your room decides. |
| Price |
A |
Mackie CR3-XBT is cheaper - $120 against $240, about 50% less; arguably a different class. |
A Mackie CR3-XBT
B Kanto YU2
depends neither is better in the abstract - it turns on your room, placement or how you will use them.
Only specs published for both speakers are judged; anything missing on either side is left out rather than guessed.
Which should you choose?
Neither runs away with it - they trade advantages. Let the "depends" rows and your own room settle it. In a large or open-plan room, Mackie CR3-XBT has the cabinet volume to fill it more easily; in a small room, near a wall or at desk distance, Kanto YU2 is the easier speaker to get right. Think about the whole system, not just the speakers: the roughly $120 saved by taking the cheaper pair would buy a subwoofer or a better amplifier, and either usually does more for the sound than the difference between these two.
And remember what a spec sheet cannot show: how each looks in your room and whether the finish suits it, what dealer support and warranty are like where you live, and how they actually sound to you. If you can hear them first - ideally with your own music - that will tell you more than any number above.