10" VS-Series Version 2 Dual 4-ohm Car Subwoofer. Net Weight: 13.15 lbs (5.95 kg). Resonance Frequency (Fs): 30 Hz. Sd: 33.00 cm². Xmax: 11mm. Sensitivity: 87 dB (1W/M). Frequency Response: 20 - 200 Hz.
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