Sony 4 XS-MP1611b 6.5" 280 Watt Dual Cone Marine Speakers Stereo Black XSMP1611 4) New Sony XS-MP1611b 6.5" 280 Watt Dual Cone Marine Speakers Stereo - Black XSMP1611b RMS Power: 65 Watt (130W per 4-pack) Water Resistance: IPx5 certified for marine use Weather Resistance: UV ray and salt water resistant Removable Grille: Front or rear mounting, removable grille can be painted to match