mono block or bi-amps which would you pick?

I want to add this as well!  I would prefer to use tube amps only.   Not to say solid states are not my cup of tea, but at the moment i would like to experiment tube amps first and later try solid states.   Please members i need your input on this!  Thanks! 

Mono-blocks are easy to set up and work correctly.

Bi-amping is more difficult to accomplish correctly.

I use 4 mono blocks & it sounds enormous! Every element is significantly improved. 

Zipost, I would PM Ralph Karsten (atmasphere). He builds, in my opinion, one of the finest tube amps and preamps available. He regularly contributes to Agon forums and is a source of unbiased opinion.
I trust his opinions implicitly.
Bob

zipost, four Atma-Sphere M60’s would be fantastic with your horn speakers! But to bi-amp, you’ll need an outboard active line-level electronic crossover to replace the passive speaker-level one included with the speakers. The First Watt B4 is a fine, moderately-priced 2-way.