So, it has it's own power amp in it that sends that signal to the cabinet? I guess that is a clean power amp? What is the wattage?
Right now it is a 6dB attenuation (25W if you put a 100W signal), but this may change in the final design.
And if one decided to go with FRFR monitors, could you load your amp with the reload, send that signal to the TwoNotes CAB, then back to the reload for amplification of the cab sim?
My head hurts.
The amplification on the Reload is driven by the signal you have at the speaker input,
ie the one coming from the speaker output of your guitar amp.
The basic use of the reload is to be plugged to a guitar/bass cabinet, not to an FRFR monitor. NEVER plug the line out of any product to the speaker in of the Reload, you will fry your line out (because of the low impedance of the loadbox).