In this video I make a couple of experiments to find out what factors determine the 4x12 tone. I also play 4 riffs to compare a 1x12 to a 4x12. I'm using a 77 Marshall JMP 2204 and a 71 Marshall 1960A Cab and a 71 G12H30 55Hz in a 1x12 (I prefer G12H to G12M in 1x12 cabs).