I've had several occasions to use the MB LM3 with my Traveler 102P cab-small room gigs-and it works great in that config for small rooms, but last night I had the opportunity to add the 15" cab under the 2 x 10. Played a larger room that seats approx 125 with a nice, big stage and sound system. Our band has 7 players and we had room to spread out. Had the LM3 up about half way and it was perfect. Light weight load in/out too. Diggin it!