Classic Morel tweeter with large voice coil and ferrite triple magnet system.
MDT-33 is one of the most respected classic high-end tweeters.
Morel MDT-33 - information in PDF format (1.32 Mb)
Air Core Coil.
8-ohm 5″ midrange.
Midwoofer with 4-ohm voice coil.
Metal-oxide film resistor.