Modular versions of larger Barefaced bass cabs
If you need the sonic performance of a Super Twin but want smaller boxes to carry you can get the same from two Super Compacts.
If you need the sonic performance of a Big Twin 3 you can get the same from two Big Baby 3 cabs.
With both of these stacks the pair of smaller cabs give you some more sonic options, for example stacking vertical vs horizontal with the SC rig or different HF control settings on the BB3 rig as you have two HF drivers rather than one.
You can make other modular 2x12XN rigs (as explained here in "using multiple 12XN cabs" but they won't have the same tone due to differences in tuning frequencies and enclosure volume per 12XN driver (the combination of volume and port tuning determines the low frequency alignment which affects frequency response, transient response, dynamic response and maximum output at each frequency).
Many people ask about pairing a Big Baby (2 or 3) and a Super Compact to make a modular Big Twin (2 or 3). This will not work because the BB2 & BT3 have more enclosure volume and a lower tuning frequency - like that of the BT2 & BT3.