Mercedes-Benz E320 Rear Door Panel Speaker Size
The Mercedes-Benz E320 rear door panel accommodates a 6.5 inch speaker size, and also supports 1 inch, 3.5 inch, and 5.25 inch speakers across the model's production span. Compatible speaker types include tweeters, midrange units, and midbass/full-range units. These specifications cover the 1994 to 2009 model years.
| Year | Type | Size (inch) |
|---|---|---|
| 2009 | Midbass / Full-Range | 6.5 |
| 2009 | Tweeter | 1 |
| 2008 | Midbass / Full-Range | 6.5 |
| 2008 | Tweeter | 1 |
| 2007 | Tweeter | 1 |
| 2007 | Midbass / Full-Range | 6.5 |
| 2006 | Tweeter | 1 |
| 2006 | Midbass / Full-Range | 6.5 |
| 2005 | Tweeter | 1 |
| 2005 | Midbass / Full-Range | 6.5 |
| 2004 | Tweeter | 1 |
| 2004 | Midbass / Full-Range | 6.5 |
| 2003 | Midrange | 3.5 |
| 2003 | Tweeter | 1 |
| 2003 | Midbass / Full-Range | 6.5 |
| 2002 | Midrange | 3.5 |
| 2001 | Midrange | 3.5 |
| 2000 | Midrange | 3.5 |
| 1999 | Midbass / Full-Range | 5.25 |
| 1998 | Midbass / Full-Range | 5.25 |
| 1997 | Midbass / Full-Range | 5.25 |
| 1996 | Midbass / Full-Range | 5.25 |
| 1995 | Midbass / Full-Range | 5.25 |
| 1994 | Midbass / Full-Range | 5.25 |
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. |
| Midrange | A driver for the middle of the audible range, typically from about 300 Hz to 5,000 Hz, where vocals and most instruments sit. It is often paired with a tweeter and a woofer. |
| 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 of the Mercedes-Benz E320 is a door-mounted location, meaning speakers are installed within the door's inner panel structure, where the mounting depth and baffle dimensions are constrained by the door's internal cavity and hardware.
- Door panel locations position speakers at roughly seat-height level in the rear cabin, which affects the angle of sound projection toward rear passengers and influences how low- and mid-frequency energy is distributed within the cabin space.
- The 6.5 inch midbass and full-range drivers specified for this rear door location have a cone surface area suited to reproducing frequencies from the upper bass region through the midrange, typically spanning roughly 60 Hz to 5 kHz depending on driver design, making them capable of anchoring the low-frequency foundation of rear-seat audio.
- A 6.5 inch driver in a door panel location benefits from the door cavity acting as an enclosure of sorts, which can influence bass response and efficiency at lower frequencies relative to free-air mounting.
- The 5.25 inch drivers listed for model years 1994 through 1999 are also classified as midbass or full-range, but the smaller cone diameter relative to the 6.5 inch units generally corresponds to a slightly higher low-frequency rolloff point and reduced low-bass output within the same door cavity.
- The Mercedes-Benz E320 rear door panel specifications for 2003 through 2009 include a 1 inch tweeter position, which at that diameter is designed to handle high-frequency content typically above 2 kHz to 3 kHz, reproducing detail, presence, and air in the upper portion of the audible spectrum.
- A 1 inch tweeter mounted in a rear door panel radiates high frequencies in a directional pattern, with dispersion narrowing as frequency increases, so placement within the door panel affects how evenly high-frequency content reaches rear passengers.
- The 3.5 inch midrange driver specified for model years 2000 through 2003 occupies the frequency band between the bass output of the 6.5 inch woofer and the high-frequency output of the 1 inch tweeter, typically covering the vocal and instrument presence range from roughly 300 Hz to 5 kHz.
- In a rear door panel installation with 3 speaker positions (6.5 inch, 3.5 inch, and 1 inch), the door must contain separate mounting locations or a multi-driver assembly capable of housing all 3 drivers within the panel's physical constraints.
- The 3.5 inch midrange cone diameter is small enough to maintain relatively controlled directivity across its operating range within the door panel, which in a rear door context helps direct midrange frequencies toward the listening position without excessive off-axis coloration.
- For model year 2003, the Mercedes-Benz E320 rear door panel is the only year in the specifications where all 3 sizes - 6.5 inch, 3.5 inch, and 1 inch - appear simultaneously, indicating a 3-way speaker arrangement at that location for that year.
- The full-range classification shared with the midbass designation for the 6.5 inch and 5.25 inch positions indicates the mounting location can accommodate drivers tasked with reproducing a wide frequency range independently, without necessarily requiring supplementary tweeter or midrange units to complete the frequency response.