![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjErm4zaLbxn74xP8H2ZK9eaPHs1m2yRZyUml1HdqpQubF-_XMyYuMlDJ5RbkI7AxVbS1USQM6N7IKzSo4o3sRUWTmbq3m7irf7P-TpSCeHM5eQdtR6LQMctbsnenftS5NjBwkHYg6CWQ/s320/jblw12gti.gif)
12" Differential Drive® Design Subwoofer.
Features of the JBL W12 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