2018 Ram ProMaster Speaker Sizes

The 2018 Ram ProMaster speaker size chart provides factory audio system specifications for replacement or aftermarket upgrade purposes. Information includes OEM speaker locations in the a-pillar and front door panel areas. Details cover specifications needed when selecting aftermarket components to replace factory speakers in the audio system.

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Speaker Details by Location
Location Size Type Notes
A-Pillar 1.5 Tweeter
  • Requires panel disassembly
  • Professional installation recommended
  • Low replacement priority
  • Replacement difficulty: high
Front Door Panel 6.75 Midbass / Full-Range
  • Standard installation
  • High replacement priority
  • Replacement difficulty: low

2018 Ram ProMaster Speaker Replacement Summary

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

Replacement difficulty:

Low: 1 Medium: 0 High: 1

Replacement priority:

High: 1 Medium: 0 Low: 1

Additional Notes

  • The A-pillar location in the 2018 Ram ProMaster appears to house a relatively small 1.5-inch tweeter, which suggests that high-frequency reproduction at this position may be limited to dedicated tweeter units rather than broader speaker types.
  • A tweeter in the A-pillar position tends to place high-frequency sound closer to ear level, which could contribute to a more focused soundstage compared to lower-mounted speaker placements.
  • The front door panel location accommodates a 6.75-inch driver, and its compatibility with both midbass and full-range types suggests there may be some flexibility in how that position is approached during a replacement.
  • A 6.75-inch midbass driver at the front door panel position would likely handle mid and lower-mid frequencies, potentially working alongside the A-pillar tweeter as part of a two-way configuration.
  • If a full-range driver were used at the front door panel instead, it might cover a broader frequency spectrum on its own, though the degree of high-frequency extension could vary depending on the specific unit selected.
  • Given that the front door panel holds a larger driver size, it may carry more priority in a speaker replacement context, as that location tends to have a greater influence on overall perceived audio output.