Mercedes-Benz GL450 Rear Door Panel Speaker Size
The Mercedes-Benz GL450 rear door panel accommodates a 6.5 inch speaker size and supports 1 inch units. Compatible audio types across these locations include midbass, full-range, and tweeter replacement units. The specifications cover a range from 2007 to 2016.
| Year | Type | Size (inch) |
|---|---|---|
| 2016 | Midbass / Full-Range | 6.5 |
| 2015 | Midbass / Full-Range | 6.5 |
| 2014 | Midbass / Full-Range | 6.5 |
| 2013 | Midbass / Full-Range | 6.5 |
| 2012 | Midbass / Full-Range | 6.5 |
| 2012 | Tweeter | 1 |
| 2011 | Midbass / Full-Range | 6.5 |
| 2011 | Tweeter | 1 |
| 2010 | Midbass / Full-Range | 6.5 |
| 2010 | Tweeter | 1 |
| 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 on the Mercedes-Benz GL450 places speakers within the interior door cavity, where mounting depth, baffle area, and proximity to the vehicle's lower cabin zone are defined by the door panel structure.
- A 6.5 inch driver is present across all listed model years in the rear door panel position, indicating a consistent cutout diameter and mounting bolt pattern throughout the full production range covered by the specifications.
- The 6.5 inch diameter supports low-to-mid frequency reproduction, typically spanning roughly 60 Hz to 5 kHz, making the rear door panel a load-bearing zone for the mid and upper bass content in the cabin.
- Door panel mounting positions a 6.5 inch cone at a low height relative to the listening position, which acoustically reinforces bass energy but reduces high-frequency dispersion toward seated passengers due to the oblique angle.
- A 1 inch tweeter position is specified at the rear door panel for model years 2007 through 2012, indicating a secondary, smaller mounting cutout exists alongside the 6.5 inch location within the same door panel assembly during those years.
- The Mercedes-Benz GL450 rear door panel accommodates both a 6.5 inch and a 1 inch driver simultaneously in model years 2007 through 2012, establishing the door as a two-driver installation location during that period.
- A 1 inch tweeter operates in the high-frequency range, typically from approximately 2 kHz to 20 kHz, and compensates for the directional limitations of the larger 6.5 inch driver at upper frequencies within the rear door environment.
- Mounting a 1 inch tweeter within the rear door panel positions high-frequency output at a lower point in the cabin, which affects the vertical soundstage and imaging angle perceived by rear-seat passengers.
- The midbass type designation for the 6.5 inch position indicates use of a driver with a crossover-dependent response, intended to operate within a defined low-to-mid band rather than reproducing the full audible spectrum independently.
- The full-range type designation for the same 6.5 inch position indicates compatibility with drivers engineered to reproduce a wider portion of the audible spectrum without requiring an external crossover network.
- Model years 2013 through 2016 list only the 6.5 inch position without a corresponding 1 inch tweeter entry, reflecting a single-driver configuration per rear door panel for those years.
- Door panel cavities typically require attention to resonance and air volume behind the cone, and the 6.5 inch mounting location in a door enclosure interacts with those internal air volumes to influence the low-frequency output of either a midbass or full-range driver.