Installation of the GTO620 and GTO630 as shown in Figures 4a, 4b, 4c and 4d. The GTO620 and GTO630 use JBL’s patented Intermount II™ mounting system. Intermount II provides for easy installation of these speakers in many standard and nonstandard locations

that will accommodate a 6-1/2" speaker.

Figure 4a.

Figure 4b.

Rotate to Lock

Front View

Slots for

 

Mounting

 

Hooks

 

Mounting Ring

 

Mounting

 

Hooks

Rotate to Lock

Mounting Hooks

Rear View

Foam Gasket

Mounting Slots

Foam Gasket

Mounting

Ring

Using Intermount II™ in American and Japanese cars with openings for 6-1/2" speakers as shown in Figures 4a and 4b.

Important: When using the steel mounting rings, you must use the sheet metal screws with undersized heads

that are included in the hardware pack and make sure

05

 

that the ring is mounted to a completely flat surface.

 

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JBL GTO620, GTO930, GTO630, GTO7520, GTO6420, GTO520, GTO920, GTO420, GTO320 owner manual That will accommodate a 6-1/2 speaker

GTO420, GTO930, GTO620, GTO520, GTO920 specifications

JBL is renowned for delivering high-quality audio products, and the GTO series of speakers embodies this commitment to performance and innovation. The GTO6420, GTO630, GTO7520, GTO320, and GTO920 models are designed to cater to different audio needs while maintaining superior sound fidelity.

The JBL GTO6420 is a 6.5-inch two-way speaker that boasts a peak power handling of 300 watts. It features a patent-pending UniPivot tweeter that allows for flexible positioning, optimizing sound quality regardless of installation location. This model utilizes JBL's Plus One woofer design, which provides an extended cone area for increased bass response. Additionally, the GTO6420 includes advanced materials such as the polypropylene woofer cone and rubber surround, enhancing durability and sound clarity.

The GTO630 is a versatile 6.5-inch coaxial speaker, capable of handling up to 225 watts peak power. It includes a similar UniPivot tweeter, ensuring optimal sound direction. With its low impedance, the GTO630 is designed to deliver more power while maintaining efficiency. Its edge-driven soft dome tweeter helps produce a smoother, wider frequency response, making it ideal for a range of music genres.

The GTO7520 is another impressive model, featuring a 5 x 7-inch size with peak power handling of 300 watts. This speaker showcases JBL's Dynamic Balance technology for minimal distortion and improved sound reproduction. Its durable construction and weather-resistant materials make it suitable for both in-car and outdoor applications.

For those seeking a compact audio solution, the GTO320 is a 3.5-inch speaker designed for tight spaces while offering impressive sound performance. With a peak power handling of 120 watts, it is ideal for front or rear fill in smaller vehicles. Its coaxial design ensures a seamless audio experience, while the lightweight, durable materials ensure longevity.

Lastly, the GTO920 stands out with its 6x9-inch size and exceptional power handling of up to 400 watts. This model features a larger woofer area, which enhances bass response, making it perfect for audiophiles who crave deep, rich sound. Its installation-friendly design ensures compatibility with a wide range of vehicles.

Overall, JBL's GTO series speakers are engineered for performance, making them an excellent choice for anyone looking to upgrade their car audio system. Their blend of advanced technology, quality materials, and thoughtful design ensures a superb listening experience tailored to diverse audio needs. Whether for deep bass, clarity in high frequencies, or overall sound immersion, these models deliver a remarkable auditory experience.