15" Differential Drive® Design Subwoofer. Features of the JBL W15 GTI include:
- Cast aluminum heat-sink cooled magnet system - for an extreme power handling
- Differential Drive System - consisting of dual-edgewound voice-coil and dual-gap technology for a doubling of Power Handling, Sensitivity and an "electrical brake" to control cone motion at extreme excursions
- more than +/- 20mm linear cone excursion - provides extremely high sound pressure levels
- Symmetrical-Field-Geometry (SFG) - reduces distortions to minimum at any level
- Aquaplas coated cone - for exceptionally stable performance even at extreme levels
- Butyl rubber surround - for better sound quality and long durability
- Two separate gold plated screw/plug terminals - provide long lasting electrical connections