Best speaker match for Levinson system

B&W N800's sound great with Levinson and would fill your large room.

Like Sgr, I would also recommend Revel products. The salons would be great, or the studio if the budget is a little tighter.

Im currently moving to all Valhalla interconnect and speaker cables (I have some transparent which I am moving to the AV system). Havent done anything yet in terms of power cables (again advie is appreciated). Has anyone heard anything about Wilson Watt/Puppy 7's or Sonus Faber Amati's with a Levinson setup?

Definitely the Revel Salons!

I have a No. 23 Levinson Amp (200W/ch), and run the Revel Studios, and they sound great. (My room (and amp) is not large enough to support the Salon, but yours are, I think.)

I think, you should have sufficient power to run the Salons as you are using monoblocks, which are higher current than a single amp. I would definitely say you had enough if you had the 33's rather than the 33H's.
(Note: If you had the same power without the monoblock design, I don't think you would have enough power. You might want to demo them first to make sure though. I know the Salons like a lot of power, usually 300-400W/ch is the usual recommendation.)

Good Luck! You have a very nice system so far!

I've never heard Levinson sound good on Wilson as the tonal balance is lean/dry in my opinion. I own Wilson Watt Puppy 7's. Also I have found that the Transparent has better synergy than Norst products with Wilson speakers.

Isn't Revel a sister company of Levinson? Therefore the matching synergy might be better.

Nice setup!