Mercedes-Benz SLK320 Rear Door Panel Speaker Size
The Mercedes-Benz SLK320 rear door panel accommodates a 6.5 inch speaker size across all listed model years. Compatible types for the location include midbass and full-range audio units. The specifications cover a range of years from 2001 to 2003.
| Year | Type | Size (inch) |
|---|---|---|
| 2003 | Midbass / Full-Range | 6.5 |
| 2002 | Midbass / Full-Range | 6.5 |
| 2001 | Midbass / Full-Range | 6.5 |
Speaker Types
| Type | Description |
|---|---|
| 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 of the Mercedes-Benz SLK320 places speakers within the lower portion of the door cavity, where the speaker fires into the cabin footwell and lower seating area rather than directly toward the listener's ears.
- Door panel mounting positions are subject to reflective surfaces and variable acoustic coupling depending on door card material and internal cavity volume, both of which affect low-frequency buildup and mid-frequency coloration.
- A 6.5 inch driver in a door panel location occupies a mounting cutout that balances cone surface area against the spatial constraints of the door's inner skin and vapor barrier, with the cone diameter allowing meaningful air displacement for lower frequencies within that enclosed cavity.
- The 6.5 inch diameter supports a lower frequency extension than smaller drivers at the same location, as the larger cone area moves more air volume per excursion cycle, which suits the rear door's role in reinforcing bass and upper bass energy within the cabin.
- A midbass driver in the rear door panel of the Mercedes-Benz SLK320 operates within a frequency band generally spanning roughly 80 Hz to 500 Hz, concentrating acoustic output on the lower midrange and upper bass registers without extending into treble reproduction.
- Because a midbass driver handles only a limited frequency band, the rear door panel position works in conjunction with other drivers elsewhere in the system to cover the full audible spectrum, with the door location reinforcing the low-end foundation of the soundstage.
- A full-range driver reproduces frequencies from bass through treble within a single driver, making the 6.5 inch cone responsible for the complete audible output at the rear door panel location when a full-range type is installed.
- Full-range drivers in a door panel position face dispersion limitations at higher frequencies, as the 6.5 inch cone becomes increasingly directional as frequency rises, meaning high-frequency content from a full-range driver at the rear door may not project evenly across the cabin.
- The rear door panel on the SLK320 is a two-door roadster configuration, meaning the doors are longer than those found on a four-door sedan, which affects the distance between the speaker mounting location and the listening position.
- The SLK320 years listed in the specifications span 2001, 2002, and 2003, all sharing the same 6.5 inch cutout dimension and the same compatible driver types at the rear door panel location.