Ok I am a pretty big guy so size, weight, and price are not an issue. My main concern is sound quality and ability to fill the room. I know the 4x10 will move more air but if its not significantly more than the 2x10 i would rather save and go with the 2x10. How would you compare? How is the bass response on either of these cabs? I am getting these in 4 ohms so I can get the total 350 watts out of my Ampeg B2 head. I am getting rid of my Ampeg BSE 115T which is only 8 ohms to do so. With college next hear i wont have room for the two 8 ohm cabs I wanted. Thanks in advance!