This JBL VT4883 subwoofer has a notable issue - there is rust on the grille. Despite this, it's a subcompact dual 12-inch cardioid-arrayable subwoofer, which can offer excellent audio performance.

Using this JBL VT4883 subwoofer is easy. Just connect it to your audio system following the instructions in the manual. When placing it, make sure there's enough space around it for proper sound dispersion. Be aware of the rust on the grille. While it doesn't directly affect the audio function, try not to touch it with bare hands to avoid getting rust on your skin. For maintenance, keep it in a dry place. You can use a soft cloth to gently clean the non - rusted parts of the grille from time to time. Don't expose it to extreme temperatures or humidity as this could damage the internal components.