Other than the speakers, does anyone know what the difference between the Marshall ORI212A Origin vertical 2x12 Marshall SV212 Studio Vintage vertical 2x12? They look pretty identical. I want to get a studio vintage 20 watt amp sometime this summer and I also want to get a cab for it. I will be putting in greenbacks so I don't want to spend an additional $400 for upgraded speakers that I will be pulling anyway. Thanks in advance.