1973 Mercedes-Benz 450SE Speaker Sizes

The 1973 Mercedes-Benz 450SE factory audio system includes specific mounting locations that accept various components, such as a dashboard accommodating a 4 inch speaker size alongside the rear deck lid which supports 4x6 inch units. For acoustic enhancement, available replacement and upgrade options consist of midrange and full-range driver designs.

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

Speaker Details by Location
Location Size Type Notes
Dashboard 4 Midrange
  • Requires panel disassembly
  • Medium replacement priority
  • Replacement difficulty: medium
Rear Deck Lid 4x6 Full-Range
  • Access through trunk
  • Medium replacement priority
  • Replacement difficulty: low

1973 Mercedes-Benz 450SE Speaker Replacement Summary

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

Replacement difficulty:

Low: 1 Medium: 1 High: 0

Replacement priority:

High: 0 Medium: 2 Low: 0

1973 Mercedes-Benz 450SE Radio Slot Size (DIN)

DIN Type Size (inch) Size (mm) Notes
Single DIN 7"×2" 180×50 Standard size for basic car radios with small display or no display
  • Always measure the slot before purchasing a new radio
  • Check slot depth - it may vary

Additional Notes

  • The 1973 Mercedes-Benz 450SE dashboard locations accommodate 4-inch midrange speakers, which suggests a factory focus on mid-frequency reproduction rather than full-spectrum audio in forward positions.
  • Rear deck lid positions in the 1973 Mercedes-Benz 450SE accept 4x6 inch full-range speakers, indicating these locations likely handle broader frequency response including bass and treble components.
  • The combination of dedicated midrange units in the dashboard and full-range speakers in the rear deck lid represents a distributed audio approach where different frequency ranges may be emphasized at different listening positions.
  • Replacing the dashboard midrange speakers could improve vocal clarity and instrumental definition, as these frequencies typically occupy the 300Hz to 5kHz range where human hearing is most sensitive.
  • The 4x6 inch rear deck speakers, being full-range types, would benefit from replacements featuring extended bass response and silk or soft-dome tweeters for smoother high-frequency output.
  • The Single DIN radio specification indicates a standard 2-inch tall head unit opening, which allows for various aftermarket receivers with potentially improved amplification and equalization capabilities.
  • Upgrading both speaker sets simultaneously might provide more noticeable sonic improvements than addressing individual locations, as tonal balance across the cabin would remain more consistent.
  • The 4-inch midrange format limits low-frequency extension due to cone surface area constraints, suggesting these drivers primarily support upper bass through lower treble reproduction.