4) New Power Acoustik PRO.658 6.5" 680W Mid Bass/Range Pro Audio Car Speakers New Power Acoustik PRO.658 6.5" 684 Watt Mid Bass/Range Pro Audio Car Speakers (4-pack) MAX Power Handling: 170W (680W per 4-pack) RMS Power Handling: 110W (440W per 4-pack) Impedance: 8 ohm Woofer Size: 6.5"