I just bought Ashdown ABM 410 from webstore without seeing it first. Somehow I remembed that it´s front ported but two reflex holes are on the back side. This is the new model with white stripe on the grill and bigger logo etc. Maybe the older model was rear ported, am I right? I sold my ABM mini48 and bought this. I hope this will be much "bigger" sounding than the 48. I use ABM EVO 500 on top. Haven´t had time to try it on real job yet.