2 Pair of Sony XS-MP1621 with Sony XM-604M Amplifier Sony XS-MP1621 6.5" 2-Way Coaxial Marine Speakers + Sony XM-604M 600W 4-Channel Marine Class AB Amplifier
Sony XS-MP1621 6.5 in (16 cm) 2-Way Coaxial Marine Speaker (Pair) - Walmart.com
Sony XS-MP1621 6.5 in (16 cm) 2-Way Coaxial Marine Speaker (Pair) | eBay