Alpine SPJ-691C3 (SPJ – Speaker Series)

Improved Bass & Treble Response

Alpine’s 6″ and 6″ x 9″ Type-J speakers feature an impressive 30Hz to 30kHz frequency response, offering a wider range than previous models and outperforming key competitors. This expanded frequency range ensures richer bass, clearer treble, and an overall boost in sound quality.

Perfect System Upgrade for Entry-Level Users

Designed with beginners in mind, these 2-way and 3-way coaxial speakers deliver significantly better sound than standard factory systems. They pair seamlessly with Alpine’s entry-level 2-channel and 4-channel amplifiers, making it easy to build your ideal car audio setup.

Simple, Hassle-Free Installation

Installing Type-J speakers is quick and straightforward. With a compact 44mm mounting depth, they fit most vehicle models without requiring spacers—making them a convenient upgrade for factory speaker replacements.