2009 Mercedes-Benz SL63 AMG Speaker Sizes

The 2009 Mercedes-Benz SL63 AMG factory audio system includes front door panels that accommodate 6.5 inch speakers, and rear door panels that accept a 3.5 inch speaker size. Midrange, midbass, and full-range units function as compatible speaker types for sound system replacement and upgrade projects.

Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.

Speaker Details by Location
Location Size Type Notes
Front Door Panel 6.5 Midbass / Full-Range
  • Standard installation
  • High replacement priority
  • Replacement difficulty: low
Rear Door Panel 3.5 Midrange
  • Standard installation
  • Medium replacement priority
  • Replacement difficulty: low

2009 Mercedes-Benz SL63 AMG Speaker Replacement Summary

2 total positions
2 easy to replace
1 high priority
0 professional only

Replacement difficulty:

Low: 2 Medium: 0 High: 0

Replacement priority:

High: 1 Medium: 1 Low: 0

2009 Mercedes-Benz SL63 AMG Radio Slot Size (DIN)

DIN Type Size (inch) Size (mm) Notes
Double DIN 7"×4" 180×100 Double size for modern multimedia systems with large touchscreens
  • Always measure the slot before purchasing a new radio
  • Check slot depth - it may vary

Additional Notes

  • The 2009 Mercedes-Benz SL63 AMG uses different speaker sizes between front and rear positions, which suggests a tiered approach to audio reproduction where larger drivers handle lower frequencies up front while smaller units focus on midrange content in the rear.
  • The front door panels accommodate 6.5 inch units that can function as either midbass or full-range speakers, offering flexibility in system design depending on whether a separate subwoofer is present or if the speakers need to cover a broader frequency spectrum independently.
  • Rear door panels house 3.5 inch midrange speakers, which typically excel at reproducing vocal frequencies and upper midrange content but may lack the cone area necessary for substantial bass output.
  • Replacing the front speakers might take priority in an upgrade scenario since the larger 6.5 inch drivers contribute more significantly to overall sound quality and bass response compared to the smaller rear units.
  • The midrange designation for the rear speakers indicates they likely operate within a limited frequency band, possibly crossing over to other speakers at both the high and low ends of their range.
  • Component speaker systems designed for the front location could separate tweeter and midbass duties, potentially offering improved imaging and frequency response compared to full-range alternatives of the same size.
  • The double DIN radio opening provides adequate space for aftermarket head units with advanced features, though integration with factory amplifiers or digital signal processing may require additional adapters.