Very nice system! I am thinking of replacing my Classe 100wpc amp with a Pass X150.8 or a X250.8 and would be placing it in a cabinet. I am a little concerned about heat. I'm guessing the X series runs a little cooler than the XA series but not sure. Does your amp get hot in your cab? Also did you addition any A/B amps from Pass before deciding on your XA30.5? Thanks, Ron