It depends on the gig. For most rock gigs that I do 300 WTS and 2X10s simply will not cover and allow any headroom. I'll FART out the speakers in a heart beat. I'm big into HEADROOM. I want to be loud and rich and NOT need to push the amp over 6 or push the speakers into the FAT zone. I want to make sure my sound is clean and fat. Some bass players are USE to overdriving their equipment, that's their sound, not mine. I think having a 2X10 with 300 WTS for small gigs, acoustic gigs, wedding band, etc is perfect and add another 8 OHM cab and you can easily do most loud gigs. Of course the biggest attraction to the MB 2X10 combo is ease of use and portability. LIGHT is good! I bought the MB TUBE800 head because it was available at my local GC and I got a killer price on it but if they had the 2X10 MB combo there and i got a good price i think i would have gone the same route as crobbins. 2X10s for rehearsal and quite gigs, added cab for rock gigs. Perfect! The only difference is I would have added a 4X10 cab not a 2X10. BUT ........... what ever makes YOU happy is what you should use.