I've heard it said that lower wattage speakers sound different. Is this due to different construction or simply how they are being pushed. For example, a 50w marshall head into a 4x12 cab with G12h-30's has a head to cab wattage ratio of 41%. A 100w head into a 4x12 with 65w g12h's has a ratio of 38%. Being fairly close in ratio's does that mean the speakers would sound about the same?