2018 Nissan Maxima Speaker Sizes

The 2018 Nissan Maxima speaker size chart provides factory specifications for all audio component locations within the vehicle. Information covers replacement speakers in the front door panels, dashboard positions, rear door panels, and rear deck lid areas. Data supports aftermarket upgrade planning by detailing factory system configurations and specifications for each speaker location throughout the audio system.

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Speaker Details by Location
Location Size Type Notes
Dashboard 2 Tweeter
  • Requires panel disassembly
  • Medium replacement priority
  • Replacement difficulty: medium
Dashboard 3.5 Full-Range
  • Requires panel disassembly
  • Medium replacement priority
  • Replacement difficulty: medium
Front Door Panel 6x9 Full-Range
  • Standard installation
  • High replacement priority
  • Replacement difficulty: low
Front Door Panel 1 Tweeter
  • Standard installation
  • High replacement priority
  • Replacement difficulty: low
Rear Deck Lid 6x9 Full-Range
  • Access through trunk
  • Medium replacement priority
  • Replacement difficulty: low
Rear Door Panel 3.5 Midrange
  • Standard installation
  • Medium replacement priority
  • Replacement difficulty: low

2018 Nissan Maxima Speaker Replacement Summary

6 total positions
4 easy to replace
2 high priority
0 professional only

Replacement difficulty:

Low: 4 Medium: 2 High: 0

Replacement priority:

High: 2 Medium: 4 Low: 0

Additional Notes

  • The 2018 Nissan Maxima factory audio system distributes six speaker locations across the cabin, with tweeters positioned in both the front door panels and dashboard areas for high-frequency reproduction.
  • Front door panels house a combination of 1-inch tweeters and 6x9-inch full-range speakers, suggesting a component-style arrangement where dedicated tweeters handle upper frequencies while larger oval speakers manage broader frequency ranges.
  • Rear audio coverage relies on 3.5-inch midrange speakers in the door panels and 6x9-inch full-range speakers in the deck lid, creating a four-speaker rear configuration that balances vocal clarity with overall sound projection.
  • The dashboard contains both 2-inch tweeters and 3.5-inch full-range speakers, which may work together to reinforce mid-to-high frequencies in the front soundstage or serve different audio zones depending on the factory system design.
  • Replacing the 6x9-inch speakers in the front doors and rear deck lid could provide the most noticeable sound quality improvement, as these larger full-range units handle the majority of the frequency spectrum and typically benefit most from aftermarket upgrades.
  • The inclusion of multiple tweeter sizes (1-inch and 2-inch) indicates the factory system likely prioritizes detailed high-frequency response, which aftermarket component speakers with higher-quality dome tweeters could potentially enhance.
  • Upgrading the 3.5-inch speakers in both dashboard and rear door locations presents an opportunity to improve midrange clarity, though their smaller size limits low-frequency output compared to the 6x9-inch locations.
  • The oval 6x9-inch format in both front and rear positions provides greater cone area than round speakers of similar widths, which typically translates to improved bass response and overall output capability when quality replacements are installed.