Mercedes-Benz SL320 Rear Door Panel Speaker Size
The Mercedes-Benz SL320 rear door panel accommodates a 6.5 inch speaker size across all listed model years. Compatible speaker types for the location include midbass and full-range audio system units. These specifications cover the 1994 to 1997 model year replacement chart range.
| Year | Type | Size (inch) |
|---|---|---|
| 1997 | Midbass / Full-Range | 6.5 |
| 1996 | Midbass / Full-Range | 6.5 |
| 1995 | Midbass / Full-Range | 6.5 |
| 1994 | 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 Mercedes-Benz SL320 accommodates a 6.5 inch speaker across the 1994 through 1997 model years.
- Door panel mounting positions speakers within an enclosed cavity formed by the door's inner and outer skins, which affects rear acoustic loading and low-frequency response due to the limited internal air volume behind the cone.
- A 6.5 inch driver carries a cone diameter large enough to move sufficient air for meaningful midbass reproduction, generally covering frequencies from roughly 80 Hz up through 5 kHz depending on cone material and crossover configuration.
- In a rear door panel position, a 6.5 inch driver benefits from the structural rigidity of the door frame, which reduces unwanted resonance that would otherwise color the midrange output.
- The midbass type, listed as compatible for the Mercedes-Benz SL320 rear door panel, is a driver specifically engineered to reproduce the lower midrange and upper bass frequencies, typically operating between approximately 80 Hz and 500 Hz.
- A midbass driver in a door panel location takes advantage of proximity to the lower cabin space, where bass frequencies naturally accumulate, reinforcing the perceived low-end weight without requiring the excursion demands of a subwoofer.
- The full-range type, also listed as compatible for the rear door panel, is a driver designed to reproduce a broad frequency band from bass through treble within a single cone, often employing a secondary whizzer cone to extend high-frequency dispersion.
- Full-range drivers in door panel applications handle the entire audible spectrum assigned to the rear channel without requiring a dedicated tweeter, which is a relevant consideration given the single mounting opening described in the specifications.
- The rear door panel position places the speaker at a lower height within the cabin, which influences high-frequency directivity since treble wavelengths are short and highly directional, affecting imaging depending on listener ear height relative to the driver.
- Door panel installations typically require attention to depth clearance, as the space between the inner door skin and the window regulator mechanism constrains the maximum mounting depth a 6.5 inch driver can occupy without mechanical interference.