I still have my original pair of Quad 57's, which I bought used back in the early 70's, as well as a pair of Crosby Quad 63's, which I bought circa 1990. Although I switched to horns in around 2006 (and love what they bring to the proceedings), I couldn't give up the Quads either. The 57's need to be restored, haven't used them in decades. Although there is life after Quads, there is something about the 57's coherence that is still unmatched.