Ground Zero GZUA 4.150SQ-PLUS 4-Channel Power Amplifier : Amazon.de: Business, Industry & Science
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Pioneer GXT-3730B-SET - 12 Inch Case Subwoofer and Bridgeable 2 Channel Amplifier Including Cable Kit, 1400 W Maximum Power, 30 cm, IMPP Membrane, Black : Amazon.de: Electronics & Photo