Edwin you mentioned the fEARful speakers, I just purchased a fEARful 15/6/1 cabinet and all I can say is wow! I also just got a great deal on a F2B and a SF2 and those playing through a fEARful cabinet is incredible. The big thing about the fEARful is that they will handle as much power as you can throw at them and will go lower and clearer with better dispersion than most other cabinets made. They also are built to play flat which allows them to reproduce whatever you put through them without coloring it. They do use the same woofer that Edward's 15 Avatar has the Eminence 3015LF. I gigged with it for the fist time about a week ago and at our sound check and had the opportunity to compare it to two Yorkville Elite subwoofers, and my band agreed that it was not only clearer but also deeper and fuller sounding. Needless to say they preferred me to play through my rig alone without going through the PA, which is what the fEARful's are designed to do. The 6 midrange speaker is so clean and clear I had to turn it down. I have a 15 fEARful subwoofer on order and should have it in about three weeks. The clean sounding Alembic pre amp and super filter with either of my Rogues through this speaker is the best that I have ever heard my gear sound. I added a 6000 watt power amp (I know a little overkill) I didn't get it to be loud, but it gives me plenty of headroom and allows it to sound great at low volume. These speakers can reproduce the full range of frequencies that Alembic electronics can make from the lowest to the highest. If you ever get an opportunity to try one please do!