Mercedes-Benz E550 Rear Deck Lid Speaker Size
The Mercedes-Benz E550 rear deck lid accommodates a 2.75 inch speaker size and supports 1 inch units across the model's production span. Compatible speaker types for these locations include midrange and tweeter units. These specifications cover the 2007 to 2017 model years.
| Year | Type | Size (inch) |
|---|---|---|
| 2017 | Midrange | 2.75 |
| 2016 | Midrange | 2.75 |
| 2015 | Midrange | 2.75 |
| 2014 | Midrange | 2.75 |
| 2013 | Midrange | 2.75 |
| 2012 | Midrange | 2.75 |
| 2011 | Midrange | 2.75 |
| 2010 | Midrange | 2.75 |
| 2009 | Tweeter | 1 |
| 2008 | Tweeter | 1 |
| 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. |
| 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. |
Additional Notes
- The rear deck lid of the Mercedes-Benz E550 accommodates 2 distinct speaker sizes across the model years listed: 2.75 inch and 1 inch.
- The rear deck lid is a fixed, horizontal surface positioned at the rear of the passenger cabin, between the rear seats and the trunk. Speaker mounting in a deck lid location places the drivers in a rearward, upward-facing orientation relative to the cabin.
- An upward-facing rear deck lid position means sound radiates toward the headliner and reflects into the cabin, which affects the perceived directionality and imaging of any speaker mounted there.
- A 2.75 inch driver is a small-diameter speaker. At that diameter, the cone has limited surface area, which restricts low-frequency output and positions the driver's operational range within the midrange frequency band, generally spanning approximately 500 Hz to 5,000 Hz.
- A midrange driver at 2.75 inches in a rear deck lid location handles the vocal and presence frequencies of the audio spectrum, where instruments and speech intelligibility are concentrated.
- The 1 inch driver size is associated with tweeter applications, where the small, lightweight diaphragm is designed to reproduce high-frequency content, typically from around 2,000 Hz to 20,000 Hz or beyond.
- A tweeter mounted in the rear deck lid of the Mercedes-Benz E550 in 2007-2009 places high-frequency dispersion at the rear of the cabin, with the driver facing upward toward the ceiling of the vehicle interior.
- Tweeters are highly directional at higher frequencies, meaning the listening angle relative to the driver's axis influences how much high-frequency energy reaches the occupants seated forward of the rear deck.
- The physical cutout dimensions required for a 2.75 inch driver differ from those required for a 1 inch tweeter, meaning the deck lid panels across the 2007-2009 and 2010-2017 model year ranges are not interchangeable with respect to speaker fitment.
- The 2.75 inch midrange driver requires a larger mounting diameter and depth clearance within the deck lid structure than the 1 inch tweeter, making enclosure depth and baffle thickness in the deck lid relevant mechanical considerations.