The 4x12 standard is killing my back, but I cant get THE SOUND without it. What would be the difference if I went to two 2x12s? I have a 2x12 recto cab now, and a 4x12 traditional which I use as much as possible, but the stairs down to my practice space make moving it in and out downright dangerous, especially at 3am after a gig. Would I get close with two 2x12 recto cabs? I don't have any way of trying it. Thanks.