Infiniti G25 Rear Door Panel Speaker Size
The Infiniti G25 rear door panel accommodates a 6.5 inch speaker size. Compatible types for the location include midbass and full-range units. These specifications cover the 2011 to 2012 model years.
| Year | Type | Size (inch) |
|---|---|---|
| 2012 | Midbass / Full-Range | 6.5 |
| 2011 | Midbass / Full-Range | 6.5 |
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 rear door panel location in the Infiniti G25 accommodates a 6.5 inch speaker across both listed model years.
- Door panel installations are typically surface-mounted or basket-mounted within a recessed cavity in the door's inner panel, with the speaker cone facing the vehicle's interior cabin.
- A 6.5 inch driver occupies a mid-sized diameter footprint, producing a cone area suited to reproducing frequencies in the lower midrange and upper bass regions, generally between approximately 60 Hz and 5 kHz depending on cone material and design.
- In a rear door panel position, a 6.5 inch driver operates at a distance from front-seat listeners, placing the speaker in a reflected and diffused sound field rather than a direct one.
- The rear door panel mounting plane is typically vertical, with the speaker baffle oriented toward the cabin floor and lower seat area, which influences low-frequency coupling with the door cavity acting as an acoustic enclosure.
- The Infiniti G25 rear door panel's door cavity volume behind the speaker baffle functions as a passive enclosure, and a 6.5 inch driver's resonant frequency and excursion characteristics interact directly with that enclosed air mass.
- Midbass is a speaker type designed to reproduce the frequency band between approximately 80 Hz and 500 Hz, covering bass guitar fundamentals, kick drum body, and lower vocal harmonics in the rear door panel position.
- A midbass driver in the rear door location reinforces low-frequency energy in the cabin, compensating for the positional distance from front-mounted audio sources.
- Full-range is a speaker type designed to reproduce a broad frequency spectrum, typically from around 80 Hz up to 20 kHz, handling bass, midrange, and high-frequency content from a single driver.
- When a full-range driver is installed in the rear door panel position, the high-frequency content reproduced by the tweeter element within the driver projects into the rear cabin area from a low and lateral mounting angle.
- Both compatible types listed for the rear door panel share the 6.5 inch diameter, meaning the physical mounting dimensions remain consistent regardless of which speaker type is selected for the installation.