4) NEW AUDIOPIPE APT-1631 6.5" 3-Way 660W Car Audio Slim Mount Speakers APT1631 NEW AUDIOPIPE APT-1631 6.5" 3-Way 660W Car Audio Slim Mount Speakers Max Power: 330 Watts per speaker (660 Watts per pair) RMS Power: 165 Watts per speaker (330 Watt per pair) Impedance: 4 Ohm Electro plated PP cone