Hey guys. I just got a 800rb from a fellow tb'er. Awesome amp. I'm pairing it with a SWR big bertha (2x15) and a G&L sb-2. I'm just wondering if I should go the extra mile and get a 2X10 so I can use the bi-amp feature. Is there a big advantage to it if you play blues rock and very rarely do any slapping? TIA for any info.