Infiniti Q70 Front Door Panel Speaker Size
The Infiniti Q70 front door panel accommodates a 6.5 inch speaker size and 6x9 inch speakers, reflecting the unique sizes found across the model's production range. Compatible types for the front door panel include midbass and full-range units. These specifications cover the 2014 to 2017 model years.
| Year | Type | Size (inch) |
|---|---|---|
| 2017 | Midbass / Full-Range | 6.5 |
| 2016 | Midbass / Full-Range | 6.5 |
| 2015 | Full-Range | 6x9 |
| 2014 | 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 in the Infiniti Q70 places speakers within the lower portion of the door, oriented toward the cabin floor and lower seating area, which affects how sound projects toward occupants.
- A door panel mounting position is typically flush or shallow-mounted within a molded cavity, meaning available depth behind the speaker basket is a critical spatial constraint for driver cone excursion and magnet clearance.
- The 6.5-inch diameter format found in the 2016 and 2017 Q70 front door panels suits a relatively compact mounting cutout, with a cone area balanced for mid-frequency reproduction and controlled directional dispersion at ear level.
- At 6.5 inches, the cone surface area supports accurate reproduction in the upper bass and midrange bands, roughly 80 Hz to 5 kHz, making the size mechanically suited to handle both fundamental vocal frequencies and lower instrument harmonics from a door-mounted position.
- The 6x9-inch oval format specified for the 2014 and 2015 front door panels has a larger total radiating surface area than a 6.5-inch round speaker, which enables greater low-frequency displacement and output volume from the same door cavity depth.
- An oval cone geometry, as used in the 6x9-inch format, fits elongated mounting cutouts that are wider than tall, a configuration sometimes used in door panels where vertical clearance behind interior trim is limited but horizontal space is available.
- Midbass speakers, listed as a compatible type for the 2016 and 2017 Infiniti Q70 front door panel, are designed to handle a narrower frequency band, typically 80 Hz to 500 Hz, with no tweeter element, concentrating their output on bass punch and lower-midrange body.
- Full-range speakers span a broader frequency band, generally from around 60 Hz to 20 kHz, using a woofer cone with an integrated or attached tweeter element to handle high frequencies from a single mounting point in the door panel.
- Because the front door panel is located at approximately knee-to-hip height for seated occupants, a full-range speaker at 6x9 inches must disperse high-frequency content upward and across the cabin, a task where the tweeter element placement and angle within the speaker frame becomes relevant to on-axis response.
- The door skin and inner panel assembly behind the mounting location can act as an acoustic boundary, and the sealed or partially sealed cavity formed between the speaker and the outer door skin influences low-frequency loading, particularly for larger-diameter drivers like the 6x9-inch format.