This speaker was engineered for an individual who wanted the ability to temporarily convert their yacht helipad into a dance floor on demand. These cylindrical marine grade speakers typically sink just below the helipad floor until they are ready to play, at which point they can be pulled up out of the deck and flipped over to bolt down in position for use. Paired with matching subwoofers, a set of these unique speakers can provide astounding levels of output, turning a helipad into a night-club.