2018 Acura MDX Speaker Sizes

The 2018 Acura MDX factory audio system features locations that accept specific components, such that the a-pillar supports a 1 inch speaker size, while the center dash and rear roof accommodate 3.5 inch speakers. Additionally, the d-pillar accepts 3.5 inch units, front door panel and rear door panel support 6.5 inch speakers, and the rear accommodates an 8 inch unit. Compatible replacement and upgrade speaker types include tweeters, full-range drivers, midranges, midbass drivers, and subwoofers.

Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.

Speaker Details by Location
Location Size Type Notes
A-Pillar 1 Tweeter
  • Requires panel disassembly
  • Professional installation recommended
  • Low replacement priority
  • Replacement difficulty: high
Center Dash 3.5 Full-Range
  • Requires dashboard disassembly
  • Medium replacement priority
  • Replacement difficulty: medium
D-Pillar 3.5 Midrange
  • Extremely difficult access
  • Professional service only
  • Low replacement priority
  • Replacement difficulty: high
Front Door Panel 6.5 Midbass / Full-Range
  • Standard installation
  • High replacement priority
  • Replacement difficulty: low
Rear 8 Subwoofer
  • Secondary sound location
  • Medium replacement priority
  • Replacement difficulty: medium
Rear Door Panel 6.5 Midbass / Full-Range
  • Standard installation
  • Medium replacement priority
  • Replacement difficulty: low
Rear Roof 3.5 Full-Range
  • Requires headliner removal
  • Professional service only
  • Low replacement priority
  • Replacement difficulty: high

2018 Acura MDX Speaker Replacement Summary

7 total positions
2 easy to replace
1 high priority
3 professional only

Replacement difficulty:

Low: 2 Medium: 2 High: 3

Replacement priority:

High: 1 Medium: 3 Low: 3

Additional Notes

  • The 2018 Acura MDX factory audio system distributes seven distinct speaker locations throughout the cabin, with sizes ranging from 1 inch tweeters to an 8 inch subwoofer configuration.
  • Replacing the front and rear door panel speakers could provide the most noticeable sound quality improvement, as these 6.5 inch locations handle primary mid-bass and full-range frequencies that dominate typical listening content.
  • The A-pillar tweeters may benefit from aftermarket replacement to enhance high-frequency detail and stereo imaging, though their 1 inch size limits options to dedicated tweeter units rather than coaxial designs.
  • Three separate 3.5 inch locations exist for center dash, rear roof, and D-pillar positions, each serving different frequency roles from full-range to dedicated midrange reproduction.
  • The 8 inch rear subwoofer position suggests a factory-equipped low-frequency driver that could be upgraded for increased bass output and extension when paired with appropriate amplification.
  • Door panel speakers accepting both midbass and full-range types offer flexibility in component selection, allowing either dedicated midbass drivers in a component setup or standalone coaxial speakers.
  • The D-pillar midrange location at 3.5 inches likely focuses on vocal and instrumental frequencies, potentially contributing to rear-seat listening quality and overall soundstage depth.