Power amp/integrated amp suggestions for SUPER POWER HUNGRY/INEFFICIENT SPEAKERS


These are the speakers
https://content.abt.com/documents/8800/M7_cut-sheet.pdf
As you can read: suggested power rating of 100-300w, 87dB sensitivity. I’m gonna need a brute of an amp to drive these things.

https://www.schiit-europe.com/index.php/producten/lyr-2-high-power-tube-hybrid-or-solid-state-headam...
I have this headphone amp, which can be used as a preamp for powered desktop speakers, but don’t know if it could be used as a preamp for a power amp.

Any and all thoughts appreciated.

Edit: looks like the Lyr 2 can be used as a preamp. So that leaves me with the decision of the power amp.
muffinhead123