Eighteensound 1,4" Hochtontreiber, Neodym Magnet.

Technical Data
Key features

111 dB 1W / 1m average sensitivity
1,4 inch exit throat
3 inch voice coil diameter
160 W continuous program power handling
Titanium Nitride Coating Dome
True Piston Motion (TPM) Technology
Powerfully Neodymium magnetic structure
Excellent thermal exchange