8" Dual 4-Ohm Subwoofer. Subwoofer Frequency Range: 42 Hz - 800 Hz. Sensitivity (1W / 1M): 86 dB. Sensitivity: 86 dB. S-Series woofers featuring a 4-layer wool/paper cone now sport a treated non-resonant finished, stamped steel basket that is custom tooled with distinctive X design.
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