Rogue Audio Cronus Magnum II and What Bookshelf Speakers

A very brief background...

I currently have an Icon Audio Stereo 20pp integrated amp paired with a set of Martin Logan lx16 speakers.  I am happy with the sound.  I'm not really able to compare it to anything as this was my first foray into the world of tube amps.  Compared to everything else that I have owned the sound is great.

I am now looking to add to my equipment.  I am pretty much settled on the Rogue Audio Cronus Magnum ii based on power and more importantly price.  From what I have read it seems like you get the most bang for your buck.  I am looking for advice on some bookshelf speakers.  I do listen to almost every type of music but really prefer classic rock, southern rock, and hard rock.  I love hearing the mids and highs of the guitars as  well last he depth of the vocals.  While I am not looking for earth shattering bass I do like some low end to bring out the punchiness of the guitars and drums. 
I have auditioned the Revel Performas, on a SS amp) but was surprised and their with range of sounds, from highs to lows.  I have read many discussions saying that Rogue Audio and Revel pair well together.  I am just looking for other options for bookshelf speakers.  I would like to stay sub $1500, closer to $1000 would be better.  I am 90% set on the amp and want to stay with a tube integrated.  It will be going in a roughly 300 sq ft room, an attic space with a vaulted ceiling.  Any advice would be appreciated.

Cheers