PSU-Base-LSUSUB-Mylar-Load-Speaker-12W-8-Omega-87mm-Sealed-Waterproof-Cone-PSU-Base-LSUSUB-A-powerful-87mm-Mylar-loudspeaker-unit-with-12W-power-handling-capability-The-waterproof-&-sealed-cone-allows-the-user-to-show-standing-waves-using-either-water-or-a-cornflour-water-mix-PSU-Base-LSUSUB-Amplifier-Load-Speaker-Unit-8-Ohms