... , Speaker unit,Horn driver,Speaker diaphragm,Voice coil *Professional Tweeter *PA Speaker unit *Voice Horn driver SE12 Tweeter, Speaker unit, ... Horn driver,Speaker diaphragm,Voice coil SE1250 W continuous program power capacity1" horn throat ... diameter36 mm (1.4 in) aluminium voice coilPolyester diaphragm1500-18000 Hz response106 dB sensitivity SE12 Tweeter, ...