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
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.
Making a BIG mistake if you don't consider the little 3/5 variations from Spendor, Harbeth and ATC.
I also use the ERA D4s in my office. I have gone through several amps, but the ERAs are keepers.
room size is aprox. 15x18,
if you are thinking of a pair of mini boxes for that size room why not go for a Used pair of Vandersteen 1 C would take up about the same space and
offer a fuller satisfying balance.