Replacement Woofer for B52 15" (8 ohm)

Direct replacement woofer for B52 15" systems with a nominal impedance of 8 ohm. Nominal basket diameter is 15". Power handling is rated at rms 400W with a music power of 800W. The driver’s resonance is 45hz and its usable frequency range covers 44hz - 5khz; sensitivity is 93.3db. Built with a 70 oz magnet, the voice coil diameter measures 2.5"(63.5mm) and the gap height is 0.375" / 9.53mm.