Mercedes-Benz C350 Rear Door Panel Speaker Size
The Mercedes-Benz C350 rear door panel accommodates a 6.5 inch speaker size and supports 1 inch units across various model years. Compatible audio types include midbass, full-range, and tweeter replacement units within the system. The specifications cover a range of years from 2006 to 2015.
| Year | Type | Size (inch) |
|---|---|---|
| 2015 | Midbass / Full-Range | 6.5 |
| 2014 | Midbass / Full-Range | 6.5 |
| 2013 | Midbass / Full-Range | 6.5 |
| 2012 | Midbass / Full-Range | 6.5 |
| 2011 | Tweeter | 1 |
| 2011 | Midbass / Full-Range | 6.5 |
| 2010 | Tweeter | 1 |
| 2010 | Midbass / Full-Range | 6.5 |
| 2009 | Tweeter | 1 |
| 2009 | Midbass / Full-Range | 6.5 |
| 2008 | Tweeter | 1 |
| 2008 | Midbass / Full-Range | 6.5 |
| 2007 | Tweeter | 1 |
| 2007 | Midbass / Full-Range | 6.5 |
| 2006 | Tweeter | 1 |
| 2006 | Midbass / Full-Range | 6.5 |
Speaker Types
| Type | Description |
|---|---|
| Tweeter | A small driver built for high frequencies, typically from about 2,000 Hz to 20,000 Hz. It adds treble detail and clarity and is usually mounted near ear level or aimed at the listener. |
| 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 places speakers within the lower portion of the passenger cabin doors, positioning drivers at roughly seat-level height relative to occupants in the rear seating row.
- Door panel cavities are constrained by the structural depth of the door shell, which limits the available mounting depth and affects cone excursion potential for any speaker installed in the opening.
- The 6.5 inch opening across all listed model years accommodates a driver diameter that balances cone surface area with the spatial constraints typical of a door panel cutout in a compact executive sedan.
- A 6.5 inch driver in a rear door panel location operates within a sealed or partially sealed cavity formed by the door shell itself, which influences low-frequency extension and overall bass output without a dedicated enclosure.
- In the midbass role, a 6.5 inch driver in the rear door panel handles roughly 80 Hz to 500 Hz, reinforcing the lower-midrange and upper-bass frequencies that contribute to vocal body and instrument weight as perceived by rear-seat occupants.
- In the full-range role, a 6.5 inch driver at the rear door panel is expected to reproduce a wider frequency span independently, covering bass through treble without supplementary drivers at that location.
- The Mercedes-Benz C350 rear door panel accommodates a 1 inch tweeter position in the 2006 through 2011 model years, indicating a multi-driver configuration at the door panel in those years.
- A 1 inch tweeter operates in high-frequency reproduction, typically handling content above approximately 2,500 Hz to 3,000 Hz, where wavelengths are short enough to benefit from the smaller diaphragm diameter.
- Placement of a 1 inch tweeter within a rear door panel positions high-frequency dispersion at a relatively low height, which affects the vertical angle at which treble frequencies reach rear passengers.
- Tweeters of 1 inch diameter exhibit directional high-frequency radiation, meaning the listening angle relative to the tweeter axis has a measurable effect on perceived treble presence for rear-seat occupants.
- The co-location of a 1 inch tweeter and a 6.5 inch midbass or full-range driver within the same rear door panel indicates a two-driver arrangement at that mounting surface for the years in which both sizes are listed.
- The rear door panel location, as opposed to front door or dash placements, contributes to rear-cabin sound staging by delivering direct sound energy to passengers seated in the second row.