I play with a group which has recently moved towards using in ears. As is the modern world of music, lower stage volume (and cleaner stages!) are a big deal. But it all has me wondering - for those with experience - once you move to in ears, does the amp size matter anymore? Is there any advantage to still use a big amp? Will I hear a difference between a 1x10, 1x12, 2x12 or 4x12?