"An Altec 416 or 515 should have a Qts down in the 0.25 range and be about 98dB/watt efficient. These are not. Qms is about right, but Qes is high = weak magnet."

I have a pair of JBL d130f that, like Pano?s 416s, are sitting unused because they sound like #$%^. Mine also have the higher than spec Qes values. I wonder if a remag would create any sonic miracles !

d130free