Use the Stream Utility App to update the firmware on your Klipsch RW-1 Wireless Speaker, Klipsch PowerGate, or Klipsch Gate. This version of the Stream Utility includes firmware update support for: RW-1 Firmware Version 0. 37. 1. Use the RW-1 wireless speakers as wireless rear surrounds with a Klipsch RSB-14 or RSB-8 sound bar.