Hi all,
I'm using a pair of LE15A with LE85A, which sounds OK to me. Yet I had the drivers checked; one has a highish voice coil resistance of 9ohms yet has the expected impedance curve when checked against a frequency sweep, with resonance peak @ 29Hz and a slow rise above 1kHz. The other driver has the expected static 6 ohms voice coil resistance, but when tested does not show any sign of the expected 29Hz resonance in the impedance curve!!
When tested in free space, they have almost perfectly similar spl/frequency curves!! The technicians I have talked to here (Belgium) are puzzled and don't know what to do besides a complete re-cone. I don't want that has the cones and surround are in perfect conditions; and I can't find NOS LE15A replacements part that easily.

As I said, I can't hear a difference, but I am asking this since I blew a HK Citation 22 driving these, while my trusty Jadis tubed DA-30 integrated can drive them without any harm for hours.... We're all wondering what the heck is going on, if anyone has a clue, I would appreciate.

Thanks for your help,