Infiniti FX35 Cargo Area Speaker Size
The Infiniti FX35 cargo area accommodates a 5.25 inch speaker size across all listed model years. Compatible types for the audio system include midbass and full-range replacement units. These specifications cover the 2010 to 2012 chart of model years.
| Year | Type | Size (inch) |
|---|---|---|
| 2012 | Midbass / Full-Range | 5.25 |
| 2011 | Midbass / Full-Range | 5.25 |
| 2010 | Midbass / Full-Range | 5.25 |
Speaker Types
| Type | Description |
|---|---|
| Midbass | A driver tuned for upper bass and lower midrange, roughly from 80 Hz to 500 Hz. It has longer cone travel than a full-range unit, which supports stronger bass in doors and panels. |
| Full-Range | 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 cargo area of the Infiniti FX35 accommodates a 5.25-inch speaker mounting location across the 2010, 2011, and 2012 model years.
- A 5.25-inch driver occupies a middle ground between compact and mid-sized speaker formats, producing a cone area large enough to handle lower midrange frequencies while remaining physically compact enough to fit within the spatial constraints typical of cargo area enclosures.
- Cargo area placements are generally recessed into panels or rear deck surfaces, meaning the speaker operates within a semi-enclosed or flush-mounted cavity that can affect rear soundstage depth and rear-cabin fill.
- The 5.25-inch diameter requires a mounting depth and cutout diameter that must be verified against the available cavity behind the cargo panel on the Infiniti FX35, as SUV cargo walls often contain structural bracing or insulation that reduces available depth.
- Midbass drivers in the 5.25-inch format are designed to handle the frequency range roughly between 80 Hz and 500 Hz, reinforcing the lower midrange and upper bass registers in a multi-component audio system where a separate subwoofer or tweeter handles the extreme ends of the spectrum.
- Full-range drivers of 5.25 inches are built to reproduce a broader spectrum, typically from around 80 Hz up to 18 kHz or higher, making them suitable as standalone replacements without requiring additional crossover components or supplementary drivers at the cargo position.
- The cargo area position in a vehicle like the FX35 places the speaker behind and below the primary listening area, meaning the directional output of a 5.25-inch driver at higher frequencies is angled away from front occupants and primarily serves rear-cabin listeners or contributes to ambient surround fill.
- Midbass drivers at a cargo location function most effectively when crossed over from above, relying on the spatial placement to reinforce low-frequency body without introducing high-frequency directionality issues common to larger or more rearward-positioned speakers.
- A full-range driver at the Infiniti FX35 cargo area position would handle treble dispersion at an angle unfavorable to front-seat listeners, which is a trade-off inherent to mounting a wide-spectrum driver in a rearward location.