Amazon.com: DS18 MP6/BK 6.5" 2-Way Marine Speakers Water Resistant 180 Watts 4 Ohms Ideal for Boat ATV UTV Jeeps Side by Side Marine Golf Car (2 Speakers)
Jason's DIY Audio: DIY Back Loaded Horn Speakers / BLH - Fostex FE206E in a Dallas III Cabinet
DIY Loudspeaker Project Pad | My latest pair of 2 way BLH with external xover | Facebook