So, last night we rehearsed in a room about 50m from the room above and it couldn't have been more different. Lovely rehearsal space, very well designed and maintained, but with a Mark Bass head and Ampeg portaflex cab that no matter what I did EQ-wise would not punch through, I had to rely on a nebulous rumble to fill out the bottom end in most songs, bloody glad I had a fretted with me as I simply could not hear the note. Next time we use that room I'm taking my own rig