1994 Porsche 928 Speaker Sizes

The 1994 Porsche 928 factory audio system features front door panels that accommodate a 4 inch speaker size alongside rear door panels that accept 6.5 inch units. Midrange, midbass, and full-range driver units serve as viable replacement and upgrade components for the vehicle.

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 4 Midrange
  • Standard installation
  • High replacement priority
  • Replacement difficulty: low
Rear Door Panel 6.5 Midbass / Full-Range
  • Standard installation
  • Medium replacement priority
  • Replacement difficulty: low

1994 Porsche 928 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

1994 Porsche 928 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 positions in the 1994 Porsche 928 accommodate 4-inch speakers designated as midrange components, which typically handle mid-frequency audio content rather than full-spectrum reproduction.
  • Rear door panel locations accept 6.5-inch speakers that can function either as midbass drivers or full-range units, providing flexibility in system configuration depending on whether a dedicated tweeter arrangement is implemented.
  • The midrange classification for front speakers suggests these positions may work within a component system where separate tweeters handle higher frequencies, rather than attempting full-bandwidth coverage.
  • Midbass-capable speakers in the rear positions could potentially anchor lower frequency reproduction when the system lacks dedicated subwoofer installation.
  • The 4-inch front speaker size may limit low-frequency extension compared to the larger rear speakers, potentially creating a frequency distribution where rear positions handle more substantial bass content.
  • Full-range capability in the rear positions of the 1994 Porsche 928 offers an alternative configuration path for those seeking to simplify installation without separate high-frequency drivers.
  • The single DIN radio specification indicates a standard-height head unit opening, which may influence the complexity of source unit upgrades and integration with aftermarket components.
  • Speaker replacement priority might focus on the rear positions first, given their larger size and dual-purpose capability potentially offering more substantial sonic impact compared to the smaller front midrange units.