2015 Infiniti QX70 Speaker Sizes

The 2015 Infiniti QX70 factory audio system features front door panels and rear door panels that accommodate 6.5 inch speakers. Compatible speaker types for a replacement upgrade include midbass and full-range units.

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

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.