small speakers


I've been reading the threads, and being new to this, I'm bit lost in the midst of things...

I have an office (13x16??)in which I want to have small speakers. Era d4 are a perfect size except my amp is an NAD 320bee. I'm told this isn't enough power. Aside from a new amp which I don't want, what are the options new or used in aspeakers?
earthquake
i'll take the contrarian view and suggest you replace the eras with a more efficient, better-sounding speaker--von schweikert vr1, psb imagine, proac, focal, rega r1 or rs1, etc.--all of which can be found in the $500-1k range.
Since the 320BEE has pre-outs you have the option of adding a more powerful power amp to the system later if you do find you need more grunt for the D4's. I'm not suggesting you will but that flexibility might make it easier to move ahead now with trying whichever speakers you decide on.
I second the B&W 685. Excellent, liked them much more that the CM2 and 705.

vin