Good news for the Lectrosonics SR users out there! Panasonic has released a firmware update for the HPX series that activates the 2 channel in the UniSlot. With this update, the list of Panasonic camera that support 2 channels goes as follows: AJ-HPX2000, AJ-HPX2100, AJ-HPX2700, AJ-HPX3000, and AJ-HPX3700