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2) Planet Audio PX12 12" 1000W RMS Axis-Series Single 4-Ohm Car Audio – LifeAfterBass
New Planet Audio TQ10S 10" 1200 Watt Car Subwoofer Power Sub Single 4 Ohm SVC
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Amazon.com: Planet Audio AC10D Anarchy Series 10 Inch Car Subwoofer - 1500 Watts Max, Dual 4 Ohm Voice Coil, Sold Individually, for Truck, Boxes, Enclosures, Use with Amplifier : Electronics
User manual Planet Audio Anarchy AC12D (English - 3 pages)
Planet Audio PX12 12" Single 4-Ohm Axis Series Car Audio Subwoofer 636210104353 | eBay