I second the Reference 3A de capos. Wife bought them to use with a cj cav-50 tube integrated but when the conrad johnson was being serviced I swiped them and hooked them up my Decware zen amp (about 1 1/2- 2 wpc SET). They are simply outstanding. More efficient than their specs (rated 92db) would indicate. Very clean and dynamic and not edgy at all. Great bass and just a fantastic all round speaker. No subwoofer needed.