Don't know whether you saw the Ken Kessler review of the Duo 300. Thought he sat on the fence tbh - I think he wanted to write that this is nothing like the former Krell amps IMHO.
I think Krell have lost their way big time with this new range - styling looks cheap, fans - that the heck, smaller transformers than historically. Measurement data suggests that the power halves when you go from 2 to 1 ohm unlike the old fpb. Check out fpb 600 stereo doubling into 1 ohm with 6kw.
Really sad news and I am a big Krell fan and owner!
http://www.absolutesounds.com/pdf/ma...HFN_Octo14.pdf