ESS Factory 10″ Woofer 689-1010

  Nominal Diameter 10" Power Handling (RMS) 80 W Power Handling (Max) 160 W Impedance 4 Ω Frequency Response 45Hz - 24kHz Sensitivity 90.6 dB 1W/1m Voice Coil Diameter 1.5" Magnet 35 oz   Thiele-Small Parameters Resonant Frequency (Fs) 27 Hz Qes 0.54 Total Q (Qts) 0.48 Compliance Equivalent Volume (Vas) 1.75 ft3 Le 1.2 mH Qms 4.1 Xmax 4 mm Re 3.4 Ω   Materials of Construction Cone Material Paper Surround Material Rubber Magnet Material Ferrite Voice Coil Former Aluminium Voice Coil Wire Material Copper Basket / Frame Material Cast Aluminum   Mounting Information Overall Outside Diameter 269 mm (10.625") Baffle Cutout Diameter 238 mm (9.375") Depth 114 mm (4.5") Mounting Holes 4 Original ESS-AMT™ design, treated paper cone, rubber surround Factory new direct replacement woofer International customers are responsible for any import fees due upon delivery.