1986 Porsche 911 Speaker Sizes

The 1986 Porsche 911 factory audio system specifies that the front door panel will accommodate a 5.25 inch speaker size, while the rear door panel locations accept 4x6 inch units. Compatible types for an audio replacement upgrade include full-range and midbass drivers.

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

1986 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

1986 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 front door panel location in the 1986 Porsche 911 accepts 5.25 inch speakers that can function as either midbass drivers or full-range units, suggesting flexibility in component selection based on whether a separate tweeter installation is planned or if a single-driver solution is preferred.
  • Rear door panel positions are limited to 4x6 inch full-range speakers, which typically provide broader frequency coverage in a single unit compared to dedicated midbass drivers, though the oval form factor may constrain output capabilities relative to round designs.
  • The front locations might receive priority during replacement due to the larger 5.25 inch size potentially offering greater low-frequency extension and higher power handling compared to the smaller rear positions.
  • Full-range speakers in both locations would provide sound across multiple frequency bands without requiring additional crossover components, while choosing midbass drivers for the front position would necessitate separate high-frequency reproduction through tweeters.
  • The single DIN radio opening provides compatibility with aftermarket head units that could deliver increased power output to replacement speakers compared to factory equipment in the 1986 Porsche 911.
  • Sound staging could potentially improve with front door panel upgrades given the positioning closer to occupant ear level compared to rear-mounted speakers, though the specific placement within the door panel would influence this characteristic.