2009 Mercedes-Benz SLK350 Speaker Sizes
The 2009 Mercedes-Benz SLK350 speaker size chart provides factory audio system specifications for replacement or aftermarket upgrade purposes. Information includes speaker locations in the front door panel, center dash, and behind the rear seat. Details cover original equipment sizes and configurations installed at each position within the vehicle audio system.
As an Amazon Associate, we may earn a commission from purchases made through links marked. Read more in our disclaimer.
| Location | Size | Type | Notes |
|---|---|---|---|
| Behind Rear Seat | 1 | Tweeter |
|
| Center Dash | 3.5 | Full-Range |
|
| Front Door Panel | 1 | Tweeter |
|
| Front Door Panel | 6.5 | Midbass / Full-Range |
|
2009 Mercedes-Benz SLK350 Speaker Replacement Summary
4
total positions
2
easy to replace
2
high priority
0
professional only
Replacement difficulty:
Low: 2 Medium: 2 High: 0Replacement priority:
High: 2 Medium: 2 Low: 02009 Mercedes-Benz SLK350 Radio Slot Size (DIN)
| DIN Type | Size (inch) | Size (mm) | Notes |
|---|---|---|---|
| Single DIN or Double DIN | 7"×2" or 7"×4" | 180×50 or 180×100 | Vehicle supports both radio sizes |
- Always measure the slot before purchasing a new radio
- Check slot depth - it may vary
Additional Notes
- The 2009 Mercedes-Benz SLK350 features a multi-speaker configuration that includes both dedicated tweeters and larger mid-range drivers, suggesting a factory setup designed for frequency separation across the audio spectrum.
- Tweeters located in the front door panels and behind the rear seat are rated at 1 inch, which typically indicates the mounting cutout size rather than the actual driver cone dimensions for these high-frequency components.
- The center dash position accommodates a 3.5 inch full-range speaker that likely handles mid-frequency reproduction and vocal clarity in the central soundstage area.
- Front door panels contain both 1 inch tweeters and 6.5 inch drivers in what may be a factory two-way component arrangement, with the larger drivers handling midbass and midrange frequencies.
- The 6.5 inch front door speakers accept either midbass or full-range replacements, providing flexibility depending on whether the installer wishes to maintain frequency division or consolidate drivers.
- Replacing the front door 6.5 inch speakers would likely produce the most substantial improvement in overall sound quality, as these drivers reproduce the majority of musical content and vocal range.
- The dual radio compatibility with both single DIN and double DIN head units in the 2009 Mercedes-Benz SLK350 suggests aftermarket stereo upgrades can be accomplished without extensive dashboard modification.
- Tweeter replacement may require attention to sensitivity ratings and impedance matching to maintain proper frequency balance with the existing or upgraded midbass drivers in the door locations.
- The center dash full-range speaker at 3.5 inches could contribute to center channel imaging, though its small size may limit low-frequency output compared to the door-mounted components.