Mitsubishi Montero Rear Side Panel Speaker Size
The Mitsubishi Montero rear side panel accommodates a 6x9 inch speaker size and 6.5 inch speakers, depending on the model year. Compatible types across these positions include full-range and midbass units. These specifications cover the 1990 to 1996 model years.
| Year | Type | Size (inch) |
|---|---|---|
| 1996 | Full-Range | 6x9 |
| 1995 | Full-Range | 6x9 |
| 1994 | Full-Range | 6x9 |
| 1993 | Full-Range | 6x9 |
| 1992 | Full-Range | 6x9 |
| 1991 | Midbass / Full-Range | 6.5 |
| 1990 | 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 side panel is a structural cavity within the vehicle's interior side wall, positioned behind the rear passengers and typically angled or flush-mounted to project sound into the cabin's rear zone.
- In the 1992-1996 Mitsubishi Montero, the rear side panel accommodates a 6x9 inch speaker, an oval format with a larger cone surface area than round equivalents, which produces stronger low-frequency output and greater overall volume displacement from a single driver.
- The 6x9 inch format's elongated cone geometry allows it to move more air than a standard round midrange driver, reinforcing bass frequencies that originate from the rear of the cabin and contribute to perceived depth and warmth in the listening environment.
- For the 1990-1991 Montero, the rear side panel uses a 6.5 inch round speaker opening, a format sized to handle midrange frequencies with moderate low-end extension, suited to the spatial constraints of a side panel enclosure with limited depth.
- The 6.5 inch driver's circular cone shape produces a more directional dispersion pattern compared to the 6x9 oval, meaning frequency radiation from the rear side panel in 1990-1991 models is more focused rather than broadly dispersed across the rear cabin.
- Full-range is the only compatible type listed for the 6x9 inch positions in 1992-1996, meaning a single driver at that location is expected to reproduce the full audible spectrum, from low bass through high treble, without a dedicated crossover network splitting frequencies to separate drivers.
- The rear side panel in a sport utility vehicle such as the Montero is typically a semi-enclosed space, where panel resonance and the surrounding door or body structure can influence the effective low-frequency response of any driver mounted there.
- Midbass is listed as a compatible type alongside full-range for the 6.5 inch positions in 1990-1991, indicating the driver bay in the Mitsubishi Montero rear side panel for those years is mechanically suited to a speaker optimized for the 80-500 Hz range rather than extended high-frequency reproduction.
- A midbass driver, when installed in a rear side panel location, reinforces the lower midrange and upper bass frequencies that support vocal body and instrument warmth, operating below the range where treble dispersion and imaging become acoustically significant.
- The transition from a 6.5 inch opening in 1990-1991 to a 6x9 inch opening in 1992-1996 reflects a change in the physical cutout dimensions of the Montero's rear side panel between those model generations.