Peugeot 505 Rear Deck Lid Speaker Size
The Peugeot 505 rear deck lid accommodates a 5.25 inch speaker size across all listed model years. Compatible types for the audio system include midbass and full-range units. The specifications cover a range of 1984 to 1991.
| Year | Type | Size (inch) |
|---|---|---|
| 1991 | Midbass / Full-Range | 5.25 |
| 1990 | Midbass / Full-Range | 5.25 |
| 1989 | Midbass / Full-Range | 5.25 |
| 1988 | Midbass / Full-Range | 5.25 |
| 1987 | Midbass / Full-Range | 5.25 |
| 1986 | Midbass / Full-Range | 5.25 |
| 1985 | Midbass / Full-Range | 5.25 |
| 1984 | 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 rear deck lid of the Peugeot 505 is a surface-mounted location positioned horizontally at the base of the rear window, above the trunk cavity, firing upward toward the cabin interior.
- Deck lid installations rely on reflected and diffused sound projection, as the speaker faces the rear window glass rather than directly toward the front occupants.
- The 5.25 inch diameter is the sole speaker size specified for the Peugeot 505 rear deck lid position across all listed model years from 1984 through 1991.
- A 5.25 inch driver occupies a mid-sized cone area, producing sufficient cone surface to move air for lower midrange reproduction while remaining physically compact enough for shallow deck lid cavities.
- The depth clearance in a rear deck lid is typically limited by the trunk lid mechanism and structural bracing beneath the panel, making the moderate depth profile of 5.25 inch drivers relevant to fitment.
- Midbass drivers in a 5.25 inch format are tuned to handle the frequency range roughly between 80 Hz and 500 Hz, reinforcing the lower midrange and upper bass frequencies that convey warmth and body in musical reproduction.
- The rear deck lid position, when loaded with midbass drivers, supplements bass energy in the cabin by taking advantage of the trunk volume acting as a passive acoustic enclosure behind the cone.
- Full-range drivers in a 5.25 inch configuration are designed to reproduce a broad spectrum from bass through high frequencies using a single cone, sometimes with a whizzer cone or similar mechanism to extend treble output.
- In a rear deck lid position, a full-range 5.25 inch driver operating without supplemental tweeters in the same location must project high-frequency content over a greater distance to reach front occupants, which can affect treble clarity due to off-axis dispersion.
- The Peugeot 505 rear deck lid specification of 5.25 inch with midbass or full-range compatibility indicates the mounting cutout and depth accommodate drivers built to either a dedicated low-midrange role or a broadband single-driver role.