Legacy Focus 20/20 Speakers AMP/Pre Amp

Hi, I am new to the forum and have been trying to find some information on the Legacy Focus 20/20 speakers.  I realize these are older speakers, but there is a pair locally where I live that are in very good condition and at a really decent price.  I have a large room that they will be going in, which is why I was drawn to these larger speakers.  I have also been looking at Legacy's newer speakers too, such as the Focus XD's or the Aeris on the forums, but they are typically only offering local pick up.  Any thoughts for or against the Focus 20/20's? 

I'm also looking for suggestions on amps and a preamp for these.  I am considering a McIntosh MC 452 or a pair of McIntosh 501 mono's for power.  Any thoughts on either of those for powering the 20/20's?

Last, any suggestions on a tube vs. solid state pre amp?  I wasn't sure if a solid state would be needed, or if I could go with a tube preamp (which I would prefer).  I also understand that Legacy has their Wavelet preamp with room correction that seems to be a requirement with their newer speakers, but wasn't sure if that would be beneficial with the Focus 20/20's.  As I mentioned, the room where these speakers will be going is a large, square room, but it also has a high "A Frame" type ceiling.  So that will likely play into the acoustics.     

Starting out, I will be running a MM turntable and a media/CD player.    

I am a novice when it comes to getting into specs of speakers and amps/preamp requirements, which is why I am reaching out on the forum.  

Thanks,

Dave