I used to have a 1x15 and a 2x10 Ashdown rig. This had now become a 1x15 Barefaced Compact rig which sounds pretty much the same in terms of "volume" and weighs 12kg compared to 56kgs for the two Ashdown cabs and occupies approximately 1/3 of the space in the back of my estate car. It's also cleaner and much more defined tone across the whole range.
I'm awaiting delivery of a second cab, not because it's necessary to keep up with the two guitars, but because 2 Compacts will be be an awseome combination!
The BF Sper 12 might be worth investigating, but get in touch with Alex at BF who is completely brilliant at customer service.