2018 Ram ProMaster Speaker Sizes

The 2018 Ram ProMaster factory audio system features an a-pillar location that accommodates a 1.5 inch speaker size, and a front door panel location that accepts 6.75 inch speakers. Tweeter, midbass, and full-range units serve as compatible speaker types for an audio replacement or upgrade.

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

Speaker Details by Location
Location Size Type Notes
A-Pillar 1.5 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.