The Infiniti FX37 center dash location accommodates a 3.5 inch speaker size. Full-range units represent the compatible type for the audio system. These specifications apply to 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 center dash location in the 2013 Infiniti FX37 accommodates a 3.5-inch speaker opening.
A center dash mounting position places the speaker at or near the horizontal plane of the dashboard, typically facing upward or angled toward the windshield to project sound toward the front cabin occupants.
A 3.5-inch driver occupies a relatively compact footprint, which suits shallow or space-constrained enclosures common in dashboard installations where depth behind the mounting surface is limited.
The 3.5-inch diameter produces a cone area that favors upper midrange frequencies, generally covering the 200 Hz to 5 kHz range with reasonable efficiency before high-frequency dispersion begins to narrow.
At the center dash position, a 3.5-inch speaker is acoustically positioned along the vehicle's central axis, which supports stereo imaging for front-seat listeners by anchoring midrange vocal and instrumental content to the center of the soundstage.
A full-range driver is designed to reproduce a wide portion of the audible spectrum from a single cone, covering low midrange through high-frequency content without requiring a passive crossover network.
In a center dash application, the full-range type allows the 2013 Infiniti FX37 center dash speaker to handle the complete signal fed to it, including both midrange and treble content, without the signal division that a component system would require.
Full-range drivers of the 3.5-inch size typically rely on a whizzer cone or treated surround to extend high-frequency reproduction, compensating for the limited tweeter area of a small full-range cone.
The center dash location is subject to direct sunlight exposure and elevated temperatures due to proximity to the windshield, which is a relevant environmental condition for speaker material durability in this position.