HIFONICS BXS8D4. 400W Max (200W RMS) 8" Brutus Series Dual 4 ohm Car Subwoofer. 8" Dual 4 ohm Shallow Mount Brutus Series Subwoofer. RMS: 200 watts. Peak: 400 watts. Resonance Frequency (Fs): 41.5. Sensitivity: 84 dB.
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