small speaker for office


I'm thinking about EPOs 3, Silverline Minuet, ERA D4, room size is aprox. 15x18, using NAD 7155. My budget is $400 max. Listening to rock, blues, acoustic, of the three, the best or other suggestions. Will be bought unheard. Any thoughts??
earthquake
+1 for Era D4's. Astonishing bass response, accuracy for a small speaker. Love the heft when you pick them up.
I am on a similar search, although I would like a decent sensitivity so I can go tubes if I get there and willing to spend a bit more if I have to.

I agree that tannoy mercury are good, got my parents some m2 way back and they love them and I had m4 in main system for a while, very good stuff.
Consider Renaissance Audio(Morel)Piccolo. I doubt you will find better drivers in a small speaker for around $700.
PSB are gear and music friendly. If your musical tastes are more specific, I'd reconsider. But, if you need a speaker that can sound good across the board of musical genres and are budget limited, they are easy to live with.