2009 Mercedes-Benz SL600 Speaker Sizes

The 2009 Mercedes-Benz SL600 factory audio system features rear door panels that accommodate 3.5 inch speakers, and front door panels that accept a 6.5 inch speaker size. Compatible speaker types for a system replacement and upgrade include midrange, midbass, and full-range units.

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 SL600 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 SL600 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 SL600 front door panels accommodate larger drivers at 6.5 inches, which may handle lower frequencies more effectively than the smaller rear units.
  • Front speakers accept either midbass or full-range configurations, suggesting flexibility in system design depending on whether a separate subwoofer is present.
  • The 3.5 inch rear door speakers are designated specifically for midrange frequencies, indicating a multi-way factory audio architecture.
  • Replacing front door speakers might provide more noticeable sonic impact given their larger cone area and broader frequency response capabilities.
  • The size difference between front and rear locations suggests the factory system likely divided frequency duties across multiple speaker positions.
  • Aftermarket midrange drivers for the rear positions would need to fit within the 3.5 inch mounting constraint while maintaining appropriate frequency overlap with the front drivers.
  • The double DIN radio opening allows for head unit upgrades with expanded features or processing capabilities that could complement speaker replacements.
  • Full-range speakers in the front positions could potentially simplify the audio system if factory crossover networks or amplification are bypassed.