Magnet Weight:23   oz
Vioce Coil Size:1 1/2"
Diaphragm Material:CLOTH
Frequency Range:1--18  kHz
Sensitivity(1W/1M):103   dB
Power RMS/MAX:60/120  W
Impedance:   4 or 8  Ω
FITS HORNS WITH1 3/8" *18 TPI THREADS