ZERO 6 XZ-B | Zero Series™ 6.5-inchThe ZERO Series 6 is a first of its kind innovation for Wet Sounds, the most advanced design available for the motorcycle, powersports & marine market, taking the legendary REV tower speaker performance and reimagining it for optimal use in more confined spaces. These speakers can also be used with or without a twist lock grille, making them ideal for both custom and OEM replacement applications. The ZERO Series speakers utilize materials such as