I am using one, AMB 500 evo II and ABM 410. Plenty loud at half volume, used for a gig at a pub in our village a few weeks ago and the bass was loud and clear from one end of the village to the other!
Having said that, I plan to sell the cab soon, as I have a barefaced on order, which weighs half of what the 410 does. Lifting it in and out of the car and onto stages, etc, is getting to be hard work.