#1
Metal protection over the tweeters is a practical strength, reducing the risk of damage from fingers or accidental contact without hiding the drivers.
Pros: Overall product quality, Overall sound quality
Cons: Remote control usability, Control button responsiveness
#2
Protection offers reassurance against damage, but can soften transients near maximum output. Exposed front woofers also deserve care around curious children or pets.
Pros: Design and aesthetics, Overall sound quality
Cons: Placement footprint, Midrange performance
#3
Driver protection is mixed because the speakers have no grille option, leaving the woofer exposed to fingers. The tweeter's phase cap does provide some useful physical protection.
Pros: Design and aesthetics, Small-room suitability
Cons: Distortion at high volume, On-device controls