The JBL GTO609C is a 2-way 6-1/2 inch component speaker system that includes a mid-bass woofer, a separate tweeter, and an external passive crossover. The design focuses on improved imaging and clearer high frequency reproduction compared with coaxial speakers.

The system is intended for aftermarket car audio installations and integrates with factory head units or aftermarket amplifiers via the supplied crossover connections. Tweeter placement and crossover integration allow tailored installation to vehicle acoustics and listening position.