This is a very high quality marine grade waterproof single voice coil 10-in subwoofer. This is designed for going into a boat or anywhere that you might have of water. It's made out of marine grade synthetic fiber spider 50 - 150 watts RMS to 300 watts peak it is a free air design so it does not need to be in a box it just needs to be mounted so you can mount it just about anywhere and it will operate. J l audio makes some of the highest grade marine gear around. This is in a really good condition no flaws works perfectly and sounds amazing. Sold my boat and don't have a need for it ran it for about 3 months.

I HAVE A FREE SHIPPING IF YOU ARE IN THE UNITED STATES I WILL PACKAGE THIS ITEM VERY VERY WELL FOR SAFE TRAVEL WHICH IS NOT CHEAP. I WILL HAVE IT OUT TO YOU WITHIN TWO BUSINESS DAYS.

JL Audio M10IB5-4-W Subwoofer Marine Grade 10 In. 300 W Peak. FREE SHIPPING.