Infiniti Q70L Front Door Panel Speaker Size
The Infiniti Q70L front door panel accommodates a 6.5 inch speaker size and 6x9 inch speakers across the model's production span. Compatible types for the location include midbass and full-range units. These specifications cover the 2015 to 2017 model years.
| Year | Type | Size (inch) |
|---|---|---|
| 2017 | Midbass / Full-Range | 6.5 |
| 2016 | Midbass / Full-Range | 6.5 |
| 2015 | Full-Range | 6x9 |
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 front door panel location positions speakers within an enclosure formed by the door's inner cavity, where the speaker fires inward toward the cabin occupants, typically at or below seated ear level.
- Door panel installations are subject to mounting depth constraints imposed by the door's internal framework, window mechanisms, and vapor barriers, all of which limit how far a speaker's basket can extend rearward into the cavity.
- A 6.5 inch driver in the front door panel of the Infiniti Q70L (2016-2017) occupies a mid-sized mounting footprint that balances low-frequency output with the spatial limits of the door cavity.
- 6.5 inch drivers in a front door location are mechanically suited to reproducing frequencies where much of the midrange vocal content resides, roughly 80 Hz to 5 kHz, with cone surface area and excursion range appropriate for that placement.
- The 6x9 inch format listed for the 2015 model year presents a larger cone area than the 6.5 inch format, which increases low-frequency displacement potential within the same door panel location.
- The 6x9 inch driver's oval geometry requires a mounting cutout shaped to an asymmetrical outline, which determines the orientation and rotational alignment of the speaker relative to the door panel's structural ribs and mounting points.
- A full-range speaker type is designed to reproduce a wide span of audible frequencies from a single driver, covering bass, midrange, and treble content without a separate crossover network directing specific bands to dedicated drivers.
- Full-range compatibility is listed for both the 6.5 inch and 6x9 inch sizes in the front door panel position, meaning a single driver in either size is specified to handle the complete audio signal delivered to that location.
- A midbass speaker type is designed to reproduce lower midrange and upper bass frequencies, typically operating within roughly 80 Hz to 500 Hz, and functions as part of a multi-driver system rather than as a standalone full-spectrum source.
- Midbass compatibility is listed only for the 6.5 inch size in the 2016 and 2017 entries, indicating the front door panel in those model years is also specified to accept a driver dedicated to the lower portion of the audible spectrum.
- The front door panel location places the speaker close to the floor level of the listening position, which affects the spatial imaging contribution of the driver and the path length of low frequencies traveling toward the listening area.