This pair of NEXO GEO S830 high-output array modules offers powerful performance. However, please note that the logo on the grille of one of the units is missing.

To use these NEXO GEO S830 array modules, first find a stable and proper location to place them. Connect them to your audio system according to the instructions. When in use, make sure the volume is adjusted appropriately to avoid over - driving. As for maintenance, keep them in a dry and clean environment. Wipe the surface gently with a soft cloth regularly. Also, check the connections periodically to ensure they are secure. Just be aware that one of the units has a missing logo on the grille, but this won't affect the normal operation of the product.