The Infiniti FX37 dashboard accommodates a 3.5 inch speaker size, fitting a single speaker configuration at that location. Full-range units represent the compatible type available for audio system use. These specifications cover the 2013 model year.
A single driver that reproduces bass through treble without a separate crossover network. It is the simplest replacement option and is common in factory audio systems.
Additional Notes
The dashboard location in the Infiniti FX37 is a shallow, horizontally constrained mounting position situated within the instrument panel, where physical depth and baffle space are significantly limited compared to door or rear deck positions.
A 3.5-inch driver in a dashboard position operates within a restricted enclosure volume, meaning the cone excursion and low-frequency extension are inherently limited by both the driver diameter and the available cavity behind the panel.
The 3.5-inch diameter places the driver in a range typically associated with upper-midrange and high-frequency reproduction, generally covering approximately 150 Hz to 20 kHz depending on the specific unit, making the dashboard a suitable location for imaging and treble presence.
Dashboard placement positions the speaker closer to the listener's ear level relative to door-mounted drivers, which affects the perceived stereo imaging and the directional arrival time of high-frequency content.
The Infiniti FX37 dashboard accepts a 3.5-inch full-range speaker type, meaning the driver is designed to reproduce the entire audible spectrum from a single cone rather than dividing frequencies across a crossover network with separate components.
Full-range drivers in small diameters such as 3.5 inches rely on cone geometry and surround compliance to extend frequency response in both directions, as there is no dedicated tweeter or woofer element sharing the workload.
The dashboard mounting surface in vehicles of the FX37's class typically involves a grille-covered aperture molded into the top of the instrument panel, with the speaker facing upward or at an angle toward the windshield, which influences sound reflection and diffusion into the cabin.
A 3.5-inch full-range driver in the dashboard of the 2013 Infiniti FX37 handles both vocal midrange and treble frequencies from a single point source, which affects the coherence of high-frequency dispersion across the listening area.