Style:5" midrange/woofer Frequency range: 35Hz-9KHz DCR: 8 Ohm Sensitivity(1W/1M): 89dB Fo: 46Hz Power handling:10W/15W(Max) Diaphragm material: Kevlar Magnet size: 90 x 32 x 17 ( OD x ID x H)mm Magnet material: Y-30 Qms.: 4.7212 Qes.: 0.3315 Qts.: 0.3098