100oz High Energy Double Stack Strontium Magnet Structure. Magnet 100oz Dual Stacked Strontium. NEW MASSIVE AUDIO GTX104H - 10" 1600 Watts max Dual 4 Ohm Subwoofer. NEW MASSIVE AUDIO GT12 - 12" 500 Watts RMS Dual 4 Ohm Subwoofer Peak Power 1000W.
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