Polk db691
6×9-inch coaxial 3-way mobile/marine loudspeaker
That rear deck is aching for thunderous loudspeakers like the db691 6×9-inch 3-way loudspeakers, featuring both a 25mm liquid-cooled dome tweeter, a 19mm super tweeter and plenty of Polk technology that makes db Series mobile audio loudspeakers a great choice.
