I friends, and tanks for the feedback, my main amp is a TB500 MK1 so the little bastard,will deliver the full 500w at either 4 or 8 ohms, so any single cab "stack" must deliver minimum of 500w at 8 ohms, i already have a 4x10 eden cab 600w 4 ohms, that i used to couple with my other amp ( 300w at 4 ohms), there for wanting a "powerful" single light weight cab, just for band practice and small gigs, for larger stages i will go with the 4x10 (my favorite sound) , maybe will try to sell the obc 212 iso and try to buy a barefaced, but used, due the lack of cash, and here in Portugal they are very rare, and the ones that show up are mainly the "12 speaker.