Autosound at its Best
The 400 and 500GTi�s are built to meet the same rigorous standards of construction and performance that have long established JBL�s renowned home and professional speaker systems. The 400 and 500GTi Woofer/Midranges incorporate advanced JBL woven Kevlar cones which are especially suited to the unique acoustic and environmental conditions which characterize automotive sound. The 400 and 500GTi are engineered to provide excellent frequency response low distortion, and high-power handling, in a minimum size. The small size of the GTi Woofer/Midranges is made possible through the use of a Neodymium magnet assembly with JBL�s Stray Field Containment Geometry. By preventing stray magnetic fields, this closed circuit magnetic assembly design concentrates the magnetic field on the voice coil where it provides superior performance. This high concentration of magnetic power is coupled to a 2" Edge-wound Aluminum 4
Wire High Temperature Fiberglass Voice Coil. This voice coil uses lightweight aluminum wire to maintain the agility to reproduce high frequencies while its large diameter assures extremely high thermal power handling. The cone motion of these high excursion designs is controlled by a Aromatic Polyamid Fiber Spider. This new material is able to control the 0.6" motion of the cone while maintaining musical accuracy because it is 3 times stronger than conventional spider materials. Treated Kevlar fiber cones are used because of their combination of low weight, high stiffness and resistance to resonances. The 400 and 500GTi Woofer/Midranges are topped off with a treated fabric inverted dome for smooth reproduction of high frequencies. What does all this technology add up to? A driver with flat frequency response, excellent off-axis response, and high output capability, all in a small and elegant package. The result is exceptionally smooth and detailed music reproduction to 5kHz and clean sound that cuts through road noise.
Designing Your System
The availability of separate components makes a variety of system designs possible. Because of their small size, the 400 and 500GTi�s are perfect for many different applications. The overall quality of any system design is a result of how well all of the components work together, not just the result of the performance of any one component. JBL GTi Series tweeter and subwoofer transducers are the ideal companion products to your 400 and 500GTi Woofer/Midranges. Each of the GTi Competition Series components is designed to complement the others to provide the highest performance with the simplest and most predictable system design. To use the 400 and 500GTi as the woofer/midrange transducers in a high quality system, we recommend you use either a high quality active crossover such as JBL�s GTX47, GTX4 or GTX2. If you prefer passive crossovers, we suggest a complete 408GTi or 508GTi system which includes the 08GTi Tweeter, 400 or 500GTi
