Mitsubishi Expo Front Door Panel Speaker Size
The Mitsubishi Expo front door panel accommodates a 6.5 inch speaker size and 5.25 inch speakers across all listed model years. Compatible audio types for all entries include midbass and full-range units. These specifications cover the 1992 to 1995 model year range.
| Year | Type | Size (inch) |
|---|---|---|
| 1995 | Midbass / Full-Range | 6.5 |
| 1995 | Midbass / Full-Range | 5.25 |
| 1994 | Midbass / Full-Range | 6.5 |
| 1994 | Midbass / Full-Range | 5.25 |
| 1993 | Midbass / Full-Range | 6.5 |
| 1993 | Midbass / Full-Range | 5.25 |
| 1992 | Midbass / Full-Range | 6.5 |
| 1992 | 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 Mitsubishi Expo front door panel accommodates 2 distinct speaker sizes across all listed model years: 6.5 inch and 5.25 inch.
- Front door panel locations are typically recessed within the door's inner skin, placing the speaker cone behind a grille or trim panel and directing sound into the lower cabin space toward the occupants' feet and lower body.
- A 6.5 inch driver occupies a larger cone surface area, which allows greater air displacement and stronger output in the low-to-mid frequency range, generally from around 60 Hz to 5 kHz depending on the driver's design.
- The 5.25 inch size, being physically smaller than the 6.5 inch, moves less air and typically reproduces a narrower low-frequency range, with its useful bass extension beginning at a somewhat higher frequency than a 6.5 inch driver in the same enclosure type.
- Door panels function as quasi-infinite baffle enclosures, meaning the door cavity behind the speaker acts as a loose, irregular rear chamber rather than a sealed or ported enclosure, which influences bass extension and output efficiency for both sizes.
- A midbass driver is specifically designed to handle the lower midrange and upper bass frequencies, typically between roughly 80 Hz and 500 Hz, without the intention of reproducing high frequencies, making cone rigidity and excursion capacity central to the design.
- A full-range driver is constructed to reproduce a broad frequency spectrum within a single unit, generally from the upper bass region through the lower treble, often incorporating a small whizzer cone or similar mechanism to extend high-frequency response.
- In a front door panel location, a full-range driver handles both the midbass content and the midrange frequencies that would otherwise require a separate driver, functioning as the sole sound source at that mounting position.
- The Mitsubishi Expo front door panel's compatibility with both midbass and full-range types at the 6.5 inch size indicates the mounting opening and depth clearance are sufficient for the range of basket depths and magnet assemblies associated with either driver type at that diameter.
- At the 5.25 inch size, midbass drivers in a door panel position still contribute low-mid frequency reproduction, but the reduced cone area relative to 6.5 inch drivers means lower sensitivity and reduced maximum sound pressure level in the bass frequencies under equivalent input power.