2009 Mercedes-Benz SLK300 Speaker Sizes

The 2009 Mercedes-Benz SLK300 speaker size chart provides factory specifications for OEM audio system locations. Information covers replacement and aftermarket speaker sizes for installations behind rear seat, in front door panel, and center dash positions. Data supports audio system upgrade planning with details on factory speaker specifications across all locations.

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Speaker Details by Location
Location Size Type Notes
Behind Rear Seat 1 Tweeter
  • Requires seat removal
  • Limited access space
  • Medium replacement priority
  • Replacement difficulty: medium
Center Dash 3.5 Full-Range
  • Requires dashboard disassembly
  • Medium replacement priority
  • Replacement difficulty: medium
Front Door Panel 1 Tweeter
  • Standard installation
  • High replacement priority
  • Replacement difficulty: low
Front Door Panel 6.5 Midbass / Full-Range
  • Standard installation
  • High replacement priority
  • Replacement difficulty: low

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: 0

Replacement priority:

High: 2 Medium: 2 Low: 0

2009 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.