2015 Infiniti QX70 Speaker Sizes

The 2015 Infiniti QX70 speaker size chart provides factory audio system specifications for replacement or aftermarket upgrade purposes. Information includes locations of speakers throughout the vehicle, from front door panels to rear door panels. Details cover factory speaker specifications to assist with aftermarket audio system component installations and upgrades.

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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

2015 Infiniti QX70 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 2015 Infiniti QX70 uses 6.5 inch speakers in both front and rear door panel locations, which establishes consistency in component sizing throughout the cabin.
  • Both door positions accommodate either midbass or full-range speaker types, allowing flexibility in upgrade approaches based on whether a dedicated tweeter system is planned.
  • Full-range speakers in these positions would handle the complete frequency spectrum independently, while midbass drivers would focus on lower and midrange frequencies when paired with separate tweeters.
  • Upgrading door panel speakers typically produces noticeable improvements in clarity and output compared to factory units, particularly in the midrange frequencies where vocals and instruments are centered.
  • The identical sizing front to rear simplifies the selection process when replacing multiple locations, as the same speaker model can be used throughout for tonal consistency.
  • Aftermarket 6.5 inch components generally offer higher sensitivity ratings and power handling than original equipment, which can enhance dynamics without requiring amplifier upgrades.
  • Midbass drivers tend to provide tighter low-frequency response than full-range equivalents at this size, though they require supplementary tweeters for high-frequency reproduction.
  • Door panel installations often benefit from sound deadening material additions, which can reduce panel resonance and improve the acoustic environment for replacement speakers.