2006 Subaru Legacy Speaker Sizes

The 2006 Subaru Legacy factory audio system features front door panel and rear door panel locations that accommodate 6.5 inch speakers. Compatible types for a replacement and upgrade include midbass and full-range units. Each designated position uses a standard 6.5 inch speaker size.

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

2006 Subaru Legacy 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

2006 Subaru Legacy 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 2006 Subaru Legacy uses 6.5 inch speakers in both front and rear door panels, suggesting a uniform replacement approach across all door locations. This standardization may simplify the upgrade process when selecting aftermarket components.
  • Door panel speakers typically handle mid and low frequency reproduction in factory audio systems. The compatibility with both midbass and full-range speaker types indicates flexibility in choosing replacements based on whether the system includes separate tweeters or requires a single driver to cover the full frequency spectrum.
  • Midbass speakers focus on lower midrange and bass frequencies, generally requiring a crossover network or separate high-frequency drivers to complete the audio range. Full-range speakers attempt to reproduce the entire frequency spectrum through a single cone, though they may not match the performance of component systems in either bass extension or high-frequency clarity.
  • The 2006 Subaru Legacy head unit opening accommodates both single DIN and double DIN aftermarket receivers. This dual compatibility provides options for basic audio upgrades or more feature-rich units with larger displays and additional functionality.
  • Replacing factory speakers with aftermarket midbass drivers typically requires adding separate tweeters to maintain high-frequency response. Full-range replacements offer a more direct swap without additional components, though the sonic characteristics differ from dedicated multi-driver configurations.
  • Sound quality improvements from speaker replacement often relate to the power handling capacity and frequency response of aftermarket units compared to factory installations. The door panel locations may benefit from proper sealing and damping materials to reduce panel resonance and improve bass output efficiency.