Nothing dumb about this thread or the participants.I'm afraid that I have to agree with Audiofeil - it's a blatantly dumb & idiotic question to ask. Not going to comment on the quality of the participants as I see several names that have contributed positively in many other threads.
More goodies get added every day.
Hear that Audiofeil?
Basically, you cannot ask "who is the king of monos?" WITHOUT giving a context. For example, if you own very eff speakers (like horns or Audionote), you could buy the smallish Monarchy Audio SM70 monos & be in 7th heaven. No need to buy an MBL 1200W/ch beast for such type of speakers. OTOH, if you have those MBL Radialstrahlers, then, an MBL 1200W/ch mono would be the king. Merely citing a big mono for its size/grandeur has no meaning & that's why this thread is a dumb thread.....