Since 5 months use several blocks Ai 4 circuits (almost 30 in total) of different brands. Botex, Stairville, Showtek and Stairway. I do not do it again + this choice because we either own or whether you are in DMX, there is always a slight oscillation of the power output that is not really top! So they will quickly become blocks of relief, but I'll try not to use them directly!. So it's not great and seems really BOTEX Tutelo or better in every way. Confirmation (December 2009) that the output is not fixed on one side and especially on one of the blocks, the faders manual work bof! not top

1 dimmer exploded, big smoke, and especially all the bulbs have blown over projectors! not good at all