I second the Kans, though the Linnes can drive up the price on these as well. Also, there is a pair of Spendor 1/5s on Audiogon now for $450. I've owned LS3/5as, S3/5as and the 1/5s; the 1/5s aren't quite a LS3/5a but come pretty close and a little more full sounding, being larger.
TLH
TLH