Mercedes-Benz E550 Rear Door Panel Speaker Size
The Mercedes-Benz E550 rear door panel accommodates a 6.5 inch speaker size and supports 1 inch units across the model's production span. Compatible speaker types for these locations include midbass, full-range, and tweeter units. These specifications cover the 2007 to 2014 model years.
| Year | Type | Size (inch) |
|---|---|---|
| 2014 | Midbass / Full-Range | 6.5 |
| 2013 | Midbass / Full-Range | 6.5 |
| 2012 | Midbass / Full-Range | 6.5 |
| 2011 | Midbass / Full-Range | 6.5 |
| 2010 | Midbass / Full-Range | 6.5 |
| 2009 | Midbass / Full-Range | 6.5 |
| 2009 | Tweeter | 1 |
| 2008 | Midbass / Full-Range | 6.5 |
| 2008 | Tweeter | 1 |
| 2007 | Midbass / Full-Range | 6.5 |
| 2007 | Tweeter | 1 |
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 in the Mercedes-Benz E550 accommodates speaker mounting within the door's inner structure, a position that places drivers in proximity to the listening area while subjecting enclosures to road vibration and varying interior cavity volumes.
- A 6.5 inch driver mounted in a rear door panel operates within a confined cavity formed by the door's inner and outer skins, which functions as an untuned acoustic chamber affecting low-frequency output and resonance behavior.
- The 6.5 inch cone size supports reproduction of frequencies roughly in the 60 Hz to 5 kHz range, making rear door placement relevant for filling the lower and midrange portion of the soundstage for rear-seat passengers.
- Midbass drivers of 6.5 inches are designed to prioritize the lower midrange and upper bass frequencies, typically 60 Hz to 500 Hz, and in a rear door panel context, the door cavity provides some degree of low-frequency reinforcement for that range.
- A full-range 6.5 inch driver handles a broader spectrum than a dedicated midbass unit, extending into higher midrange frequencies without requiring a separate tweeter, which is a relevant distinction given that some model years in the Mercedes-Benz E550 rear door panel do not list a corresponding 1 inch tweeter.
- The 1 inch tweeter listed for the 2007, 2008, and 2009 Mercedes-Benz E550 rear door panel indicates a 2-driver configuration at that location for those years, separating high-frequency reproduction from the 6.5 inch driver's frequency responsibilities.
- A 1 inch tweeter typically handles frequencies from approximately 2 kHz to 20 kHz, and rear door panel placement positions high-frequency output toward the cabin's lower half, which influences the perceived directional character of treble frequencies for rear-seat occupants.
- Tweeters are highly directional at high frequencies due to the short wavelengths involved, meaning the mounting angle and position within the rear door panel structure affect the spatial dispersion of upper frequencies within the cabin.
- The rear door panel mounting position places the 6.5 inch driver at a distance from the front listening positions, which introduces time-of-arrival differences relative to front-mounted speakers and affects imaging characteristics for front-seat occupants.
- In years where only a 6.5 inch full-range driver is listed for the rear door panel, the single driver handles the entire audible spectrum at that location without acoustic crossover separation between frequency bands.