They have 16 ohm silver voice coils.
Shielded magnets with earth drain lead.
They were built by Massimo Piantini of Max Research in a collaboration with Yamamura Be using Japanese paper, the proprietary secret black cone-doping compound and slow bake process.
The Loth-X are the best-sounding unmodified full-range drivers ever with beautifully machined frames, stiff cone-doping giving a pistonic movement (no folding) and high quality speaker terminals etc. 104db to 108db sensitivity – horn cab dependent.
Flat 8 ohm and extremely rare as were not sold separately from speaker cabs.
