Morel MDT-30S features a single magnet system vented into a damped rear chamber which lowers resonance.
Morel MDT-30S - information in PDF format (1.32 Mb)
High-sensitivity tweeter with under-hung voice coil.
Ferro fluid cooled dome tweeter.
Air-core OFC foil coil.
High-purity copper coil wound around a Permite core (with discs).