I have been playing bass in active bands for nearly forty-years and have used various amp/rig setups. The Rumble 500 is much better than advertised! It's light, compact and can shake the shingles off the roof at half-volume. It blows my mind that I can get the same effect on stage that used to take nearly a wall of amp and speakers to achieve. Even better, I can carry my entire setup—bass, gear bag and amp—by myself in one trip and it doesn't wear me out before a gig! The bonus is that The Rumble 500 is expandable in that you can add an additional 2-10 cabinet for a bigger punch in larger venues.