2009 Mercedes-Benz SLK300 Speaker Sizes
The 2009 Mercedes-Benz SLK300 factory audio system features specific mounting locations that accommodate different drivers. Center dash locations accept 3.5 inch speakers, while front door panel locations accommodate an 6.5 inch speaker size alongside front door panel and behind rear seat locations supporting 1 inch units. Compatible speaker types for replacement and upgrade include tweeter, full-range, and midbass.
Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.
| 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 SLK300 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 SLK300 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 SLK300 features a multi-speaker configuration that separates frequency reproduction across different locations, with tweeters positioned in the front door panels and behind the rear seats to handle high-frequency sound.
- Replacing the front door panel components may offer the most noticeable sound quality improvement, as these locations contain both 6.5 inch midbass or full-range speakers and 1 inch tweeters that work together to cover a broad frequency spectrum.
- The 3.5 inch full-range speaker in the center dash location likely handles mid-range frequencies and contributes to soundstage imaging, though its smaller size typically limits bass response compared to the larger door-mounted units.
- Upgrading to component speakers in the front doors would maintain the factory's separate tweeter and midbass arrangement, potentially providing better frequency separation than switching to coaxial full-range alternatives in those positions.
- The inclusion of dedicated 1 inch tweeter locations suggests the factory system was designed with some attention to frequency detail, though aftermarket tweeters with higher sensitivity ratings could enhance clarity in the upper registers.
- The 6.5 inch speakers in the front doors accept both midbass and full-range types, giving owners flexibility to choose between component system integration or standalone coaxial speakers depending on their audio goals and budget considerations.