When you said both are very hard to drive, in relative 111F should be slightly easier???
Hah, nothing to to with the midrange melon.
On the 111F it’s where the -phase (dotted line) meets the low impedance at 1khz and again more severe at 40hz again impedance only at 10khz that makes it a hard load.
On the 101E it’s where the -phase and low impedance again meet at 40hz also just the low impedance at 10khz and again between 200hz and 500hz.
Both are hard but in different areas, so it’s hard to say which is easier.
Also both are very low efficiency tested at 81db for the 101E and 80db for the 111F so they both need a lot of watts as well as good current from an amp, your Devialet may work?? but I have a thing against Class-D and have never heard one that makes me settle into the music, that why I suggested the MBL or big Krells for this job.
I've listened to the 101E's for 1/2 a day on different amps, they love to be driven hard, and they will impress big time.
The amp is very important for these speakers, just imagine this is the speaker cable and a wrong amp being sucked up by the speaker.
http://sliptalk.s3-us-west-2.amazonaws.com/wp-content/uploads/2015/06/29183752/snake-eats-a-porcupin...Cheers George