how much volume would i lose by going from an ampeg svt 810e w/ an rmx 850, to an avatar 2x10/2x12 w/ an rmx 1450? i'd still run the amp brigded into 4 ohms. i play in two really loud rock bands, and usually the only pa at venues is for vocals. i need to rely on my amp/stage volume to cut/thump. the reason for this possible change is mainly portability, and the ability to take the 2x10 home for practice. but, i'm young, and big, so if it's not going to be nearly as loud, then i'll keep lugging around the 8x10. what are your opinions? thanks.