1984 Porsche 911 Speaker Sizes

The 1984 Porsche 911 factory audio system includes specific mounting locations. The front door panel accommodates 5.25 inch speakers, while the rear door panel accommodates a 4x6 inch speaker size. Compatible replacement and upgrade types include 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 5.25 Midbass / Full-Range
  • Standard installation
  • High replacement priority
  • Replacement difficulty: low
Rear Door Panel 4x6 Full-Range
  • Standard installation
  • Medium replacement priority
  • Replacement difficulty: low

1984 Porsche 911 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

1984 Porsche 911 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 1984 Porsche 911 uses two different speaker formats between front and front door positions, with rear panels accommodating 4x6 inch oval units and front panels fitting 5.25 inch round speakers.
  • Front door panels offer flexibility in component selection, accepting either dedicated midbass drivers or full-range speakers depending on the audio system design approach.
  • Rear door panel locations are limited to full-range speakers only, which handle the entire frequency spectrum through a single driver rather than separating bass and treble duties.
  • The front speaker positions would typically be prioritized for replacement when upgrading audio quality, given their midbass capability and more direct sound staging toward occupants.
  • Full-range speakers in the 4x6 inch format generally provide adequate vocal clarity and midrange response, though bass extension is constrained by the smaller cone area compared to the front units.
  • Installing midbass drivers in the front positions would require a separate tweeter solution for high-frequency reproduction, while full-range speakers handle all frequencies independently.
  • The single DIN radio opening provides standard head unit mounting depth, supporting most aftermarket receiver options without requiring custom dash modifications.
  • Speaker mounting depth and magnet clearance behind each panel location would need verification before selecting replacement drivers with larger motor structures.