Beyma - PRO 65ND - 6.5" NEO MIDRANGE SPEAKER

*Sold in singles  COMPETITION SERIES BEYMA PRO 65ND - 6.5" NEO MIDRANGE SPEAKER  BEYMA PRO 65ND IS A HIGH POWER LIGHTWEIGHT 6.5" CAR MIDRANGE SPEAKER FROM THE BEYMA COMPETITION SERIES HANDLES 100 WATTS AES & 200 WATTS PROGRAM POWER FEATURES A LIGHTWEIGHT NEODYMIUM MAGNET & A VERY HIGH EFFICIENCY OF 100DB SPL DELIVERS CLEAR, CRISP & DETAILED MIDRANGE OF HIGH QUALITY AVAILABLE IN 4 OHMS ONLY BEYMA PRO 65ND 6.5" MIDRANGE HAS A LIGHTWEIGHT NEO MAGNET & VERY HIGH 100DB SPL! Specifications Nominal Basket Diameter 6.5 / 165mm Impedance 4 ohms AES Power Rating 100 Watts Program Power  200 Watts   Frequency Response 150Hz - 8.0kHz Sensitivity (1W/1m) 100dB Voice Coil Diameter 1.5" / 38.5mm BL Factor 8.2 N/A Mounting Information Overall Diameter 6.5" / 165mm Bolt Circle Diameter 6.14" / 156mm Baffle Cutout Diameter-   - Front Mount 5.67" / 144mm No. Of Mounting Holes 4 Overall Depth 2.74" / 70mm Materials Basket Die Cast Aluminum Cone Paper Magnet Ferrite Thiele-Small Parameters Resonant Frequency (fs) 215 Hz Impedance (Re) 3.5 ohms Coil Inductance (Le) .35 mH Mechanical Q (Qms) 8.0 Electrical Factor (Qes) .51 Total Q (Qts) .48 Comp. Equivelant Vol. (Vas) .074 ft3 / 2.1 Liters Surface Area of Cone (Sd)m2 0.140 Reference Efficiency 4%