1BFR  -> 1 VRX enclosure, Active 2-Way Module
1BSub -> 1 VRX enclosure, Active 3-Way Module w/ Sub
2BFR  -> 2 VRX enclosures, Active 2-Way Module
2BSub -> 2 VRX enclosures, Active 3-Way Module w/ Sub
3BFR  -> 3 or more VRX enclosures, Active 2-Way Module
3BSub -> 3 or more VRX enclosures, Active 3-Way Module w/ Sub
PSub  -> Passive VRX, 2-Way Module w/ Sub
