What slim$1000 speakers will match Bryston B-60 ?

Could someone tell me which floor-standing speakers with small footprint (less than 3.5 ft tall), good midrange, transparent (layer-distinct) and clear musical image and soundstage will be compatible with my Bryston B-60 integrated amplifer well (60W/ch rms). Currently, it is connected to a pair of Athena AS-F2 speakers using Ecosse (Scottish) interconnect and cables. The Athena is physically daughting but with good bass, though it is not so transparent(3D)in the midrange or can produce a good 3D soundstage that will match the Bryston. I play mostly classical (85%) and Jazz (15%) music via an Arcam alpha 8 CD speakers.