Last week I heard a pair of Vienna Acoustics Mozart Speakers driven by a Bryston 4B and BP25 preamp at a dealer. The combination was very good. Solid imaging, reasonable bass response, clean midrange. The speaker above the Mozart, the Bethoven, was much better. A much larger speaker, but I thought a true full range speaker at a reasonable price. I would suggest that you listen to the Audio Physic Tempo before you make your decision. I think it works well with Bryston amp.