Elite Core now has metal stage pocket audio floor boxes that include a single gang electrical AC outlet. Along with the addition of an electrical outlet they have also made the floor box a little larger so you can still have many options of standard Series “D” style connectors. Most of them come loaded with female xlr microphone connectors. They use philips head screws instead of rivets so it is super easy to change out the connector. These floor boxes are made out of steel and are very sturdy and rugged. Check out all of the options.