Input Selector System ISS V2 will have 4 slots for the input cards.
Cards can be upgraded in future. This kind of setup gives the user a bit of the flexibility to configure his own system. At the moment 4 cards contains:
-2x analog input with sub woofer output filter
-4x digital input (2x coax, 2x toslink)
-fully isolated USB input card, in future it will be integrated with Bluetooth-I2S module
More stuff coming soon......