I got around to using the peq on the pb2 ultra and it sounds cleaner but the bass peaks are not nearly as loud. I assume this is because I reduced the peak, but I thought I would get more volume than this. It would be ok If I did not here the peaked version. Now I want the volume of the peaked version with the sound of the eq'd version. My bass peaks are now anywhere from 107-112db and before they ranged from about 113-118 so a considerable difference. I recalibrated after eq so that is not the problem. I dont think there is a problem it is just flatter now and not as loud in some areas as well. I assume this is normal, right? How much volume would a second pb2-ultra give me if I stacked it on top of this one in my 12x17 room? How much louder would a b4+ be over dual/single pb2-ultras?