Mercedes-Benz R320 D-Pillar Speaker Size
The Mercedes-Benz R320 D-Pillar accommodates a 1 inch speaker size across all listed model years. Compatible types for the location include tweeter audio units, which represent the sole system category supported. These specifications cover the 2007 to 2009 replacement chart range.
| Year | Type | Size (inch) |
|---|---|---|
| 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. |
Additional Notes
- The D-pillar location in the Mercedes-Benz R320 accommodates a 1-inch speaker opening across the 2007, 2008, and 2009 model years.
- A 1-inch driver in the D-pillar operates within the high-frequency range, typically reproducing sounds from approximately 2,000 Hz up to 20,000 Hz or beyond, depending on the driver's construction.
- The D-pillar is the rearmost vertical structural column in a vehicle, placing speakers at the far aft of the cabin near the third-row seating area.
- Positioning a tweeter at the D-pillar allows high-frequency content to be distributed toward the rear of the passenger cabin, counteracting the attenuation of treble energy over distance from front-mounted drivers.
- Tweeters are dedicated high-frequency transducers, designed with lightweight diaphragms and small cone or dome surfaces to reproduce upper-register audio detail with minimal distortion.
- A 1-inch tweeter's small diaphragm area is acoustically suited to the high-frequency wavelengths it reproduces, as those short wavelengths require less cone excursion and benefit from a compact radiating surface.
- The Mercedes-Benz R320 D-pillar mounting position, given the column's angle and rear-cabin orientation, influences the directional dispersion of the tweeter's output toward passengers seated in the second and third rows.
- Tweeters at the 1-inch diameter are among the most common small-format high-frequency drivers and are dimensionally compatible with the constrained structural space typically available within a D-pillar housing.