Although Quad 57's have about the best midrange you will ever find, the ESL 63's do it all, including better power handling capabilities.Imaging and room spaciousness are much better as well. Do not screw them up by putting them with subwoofers. I own both types of Quads, so I know. Never heard the 989's but it is not the same company that produced the earlier models. Martin Logan was never in the same league as Quad.
