2011 Mercedes-Benz SLK300 Speaker Sizes

The 2011 Mercedes-Benz SLK300 factory audio system has specific installation locations for various components. Center dash locations accept 3.5 inch units, while front door panel and behind rear seat areas accommodate 1 inch speakers. Additionally, front door panel positions accept a 6.5 inch speaker size. Compatible replacement and upgrade speaker types include tweeters, midbass units, 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
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

2011 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

2011 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 2011 Mercedes-Benz SLK300 contains a multi-component audio system with separate tweeters and larger drivers distributed across different locations in the cabin.
  • Factory tweeters at 1 inch are positioned in both the front door panels and behind the rear seat, suggesting a distributed high-frequency setup.
  • The front door panels house dual-size speakers, combining 1 inch tweeters with 6.5 inch midbass or full-range drivers, which indicates a component-style configuration.
  • A 3.5 inch full-range speaker is located in the center dash, potentially serving midrange frequencies or supplementing center-channel sound reproduction.
  • Replacing the 6.5 inch front door drivers could be a primary consideration for sound improvement, as these handle the majority of mid and low-frequency content.
  • The tweeter positions suggest that upgrading high-frequency components might require work in multiple locations to maintain sonic balance.
  • Component speaker systems with separate tweeters and woofers would align with the factory configuration in the front doors.
  • The center dash speaker may contribute to stereo imaging and soundstage width, though its smaller size limits low-frequency output.
  • Both Single DIN and Double DIN radio compatibility provides flexibility for aftermarket head unit installations.
  • The rear tweeter placement behind the seat could indicate rear-fill functionality or surround sound processing in the factory audio design.