Mercedes-Benz 280C Rear Deck Lid Speaker Size
The Mercedes-Benz 280C 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 replacement units. These specifications cover a range of years from 1973 to 1976.
| Year | Type | Size (inch) |
|---|---|---|
| 1976 | Midbass / Full-Range | 5.25 |
| 1975 | Midbass / Full-Range | 5.25 |
| 1974 | Midbass / Full-Range | 5.25 |
| 1973 | 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 Mercedes-Benz 280C is a horizontal surface positioned at the rearmost section of the passenger cabin, spanning the width of the vehicle behind the rear seating.
- Mounting in a rear deck lid places speakers in a location that projects sound forward toward the passenger compartment, with the acoustic energy traveling across the cabin length before reaching front occupants.
- The 5.25-inch diameter is the sole speaker size represented across all listed model years of the 280C, indicating a consistent aperture dimension for the rear deck lid opening throughout the 1973-1976 production range.
- A 5.25-inch driver occupies a mid-sized cone area, producing sufficient cone surface to move air effectively in the upper bass and midrange frequencies, generally covering approximately 80 Hz to 5 kHz depending on driver design.
- The physical constraints of the rear deck lid panel limit the available mounting depth and baffle area, factors that favor a compact driver diameter such as 5.25 inches over larger alternatives.
- Midbass is one of the 2 compatible types listed for the 280C rear deck lid position. A midbass driver is specialized for frequencies roughly between 80 Hz and 500 Hz, reinforcing the lower midrange and upper bass registers in the rear cabin area.
- When a 5.25-inch driver operates as a midbass unit in the rear deck lid, the cone size supports adequate low-frequency excursion without requiring the enclosure depth that a larger woofer would demand in a shallow deck lid cavity.
- Full-range is the second compatible type listed for the rear deck lid location. A full-range driver is designed to reproduce a wide frequency band from bass through treble within a single cone, relying on cone breakup or a whizzer cone to extend high-frequency response.
- In a rear deck lid position, a full-range 5.25-inch driver handles the complete audible spectrum assigned to the rear channel without requiring a separate tweeter, which suits installations where the deck lid panel lacks additional mounting cutouts.
- The horizontal orientation typical of a rear deck lid affects the dispersion pattern of a speaker, as the cone faces upward toward the rear window rather than directly toward seated occupants, influencing the angle at which sound reflects into the cabin.