2009 Infiniti QX56 Speaker Sizes

The 2009 Infiniti QX56 speaker size chart provides factory specifications for replacement and aftermarket audio components. Information covers locations within front door panel and rear door panel positions. Data includes specifications for factory speaker configurations and aftermarket upgrade compatibility. Details address both replacement and system enhancement applications for audio installations.

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Speaker Details by Location
Location Size Type Notes
Front Door Panel 6x9 Full-Range
  • Standard installation
  • High replacement priority
  • Replacement difficulty: low
Rear Door Panel 6.75 Midbass / Full-Range
  • Standard installation
  • Medium replacement priority
  • Replacement difficulty: low

2009 Infiniti QX56 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

Additional Notes

  • The 2009 Infiniti QX56 front door panels accommodate 6x9 inch full-range speakers, which typically offer broader frequency response compared to standard round speakers due to their larger cone surface area. This oval configuration allows for increased bass output without requiring separate woofers in many installations.
  • The rear door panels in the 2009 Infiniti QX56 accept 6.75 inch speakers that can function as either midbass drivers or full-range units. This smaller round format suggests a different acoustic role than the front doors, potentially allowing for dedicated midrange and bass reproduction when paired with separate tweeters.
  • Replacing factory speakers with aftermarket options may yield noticeable improvements in clarity and dynamic range, particularly if the original components have degraded over time. The different sizes between front and rear positions indicate a factory-designed soundstage that aftermarket selections should consider maintaining.
  • The full-range compatibility of the front door speakers suggests they handle treble, midrange, and bass frequencies from a single unit, while the midbass option for rear doors indicates flexibility in system configuration. Upgraders might choose dedicated midbass drivers for the rear if installing separate tweeters elsewhere.
  • The 6x9 inch front speaker size generally provides higher sensitivity ratings than smaller round speakers, potentially resulting in louder output with the same amplifier power. This configuration may have been selected to maximize sound pressure levels in the larger cabin space without additional amplification.