2018 Honda Odyssey Speaker Sizes

The 2018 Honda Odyssey factory audio system includes center dash and a-pillar locations that accommodate 3.5 inch speakers. Front door panel and rear door panel locations accept 6.5 inch speakers, while the rear location supports an 8 inch speaker size. Compatible speaker types for a replacement and upgrade include full-range, midrange, midbass, and subwoofer units.

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

Speaker Details by Location
Location Size Type Notes
A-Pillar 3.5 Midrange
  • 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
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

2018 Honda Odyssey Speaker Replacement Summary

5 total positions
2 easy to replace
1 high priority
1 professional only

Replacement difficulty:

Low: 2 Medium: 2 High: 1

Replacement priority:

High: 1 Medium: 3 Low: 1

Additional Notes

  • The 2018 Honda Odyssey contains five distinct speaker locations with varying sizes and compatible driver types distributed throughout the cabin.
  • The center dash position accommodates a 3.5 inch full-range driver, which typically handles mid and high frequencies from a single voice coil design.
  • A-pillar mounting points accept 3.5 inch midrange drivers, suggesting a focused frequency range excluding the lowest bass and highest treble reproduction.
  • Both front and rear door panels share identical 6.5 inch openings that support either midbass or full-range drivers, providing flexibility in component selection based on system design.
  • The rear location features an 8 inch subwoofer position dedicated to low-frequency reproduction, larger than the door-mounted speakers.
  • Door panel speakers might be prioritized for replacement since they handle a wider frequency spectrum and directly impact primary listening positions.
  • The dual compatibility of door speakers allows for either dedicated midbass drivers in a component system or standalone full-range units in a simpler configuration.
  • The presence of separate A-pillar midrange positions suggests potential for a more complex staging setup when combined with door-mounted components.
  • Smaller 3.5 inch drivers in both dash and A-pillar locations may benefit less from upgrades compared to larger door and subwoofer positions due to physical cone area limitations.
  • The existing 8 inch subwoofer location could constrain low-frequency extension compared to larger aftermarket subwoofer options, though installation simplicity may favor using the factory position.