I think my old Krell FPB 400CX will power the F208's with 400 wpc in to 8
ohms, 800 into 4, 1600 into 2. I have ordered f208's. they are coming
this week.
Bear in mind one tube watt equals about three to five or more solid state watts. Turns out running the signal through all those extra wires and circuits chokes the life right out of the music. Had a friend with some monster Krell monoblocks couldn't hold a candle to my 60 watt Aronov. Thus Robert Harley's famous quip, "If the first watt isn't any good why would you want 200 more of them?"
On the fence between Moab and Double impact se tekton to
compare.
Search around, those who have heard them feel the Moab is a significant step up, with Encore and Ulf each being a little better still.
The big step seems to be going to the full MTM array. This creates what is in effect one incredibly high quality 9" midrange/tweeter capable of covering everything from around 270 Hz to 20kHz. This is the range the ear is most sensitive to and accounts for the number of people saying the midrange is perfect. Once you get the full MTM in the Moab it becomes an exercise in refinement. So not the best but it sure seems to be the sweet spot.
The wild card is if you decide to go for full Be. Not just the one tweeter, all of them. Big price bump but that is where you start to get into real giant killer territory.