1981 Dodge St. Regis Speaker Sizes

The 1981 Dodge St. Regis factory audio system features a dashboard accommodating a 3.5 inch speaker size, and the rear accepts 6x9 inch units. Full-range drivers serve as compatible types for any audio system replacement and audio upgrade.

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

Speaker Details by Location
Location Size Type Notes
Dashboard 3.5 Full-Range
  • Requires panel disassembly
  • Medium replacement priority
  • Replacement difficulty: medium
Rear 6x9 Full-Range
  • Secondary sound location
  • Medium replacement priority
  • Replacement difficulty: medium

1981 Dodge St. Regis Speaker Replacement Summary

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

Replacement difficulty:

Low: 0 Medium: 2 High: 0

Replacement priority:

High: 0 Medium: 2 Low: 0

1981 Dodge St. Regis Radio Slot Size (DIN)

DIN Type Size (inch) Size (mm) Notes
Single DIN 7"×2" 180×50 Standard size for basic car radios with small display or no display
  • Always measure the slot before purchasing a new radio
  • Check slot depth - it may vary

Additional Notes

  • The 1981 Dodge St. Regis came equipped with two distinct speaker locations that accommodate different size configurations, suggesting a basic two-point audio setup common in vehicles of this era.
  • The dashboard position accepts 3.5 inch full-range speakers, which typically handle mid-range frequencies and some treble reproduction, though this smaller format may present limitations in bass response.
  • Rear speaker positions utilize the larger 6x9 inch full-range format, which generally provides broader frequency response capabilities compared to the dashboard units due to increased cone area.
  • The single DIN radio specification indicates a standard-height head unit opening, which affects aftermarket radio replacement options and may influence integration with more advanced audio components.
  • Full-range speaker types in both locations indicate that the 1981 Dodge St. Regis system was designed to reproduce the entire audio spectrum from a single driver per location, rather than using separate component speakers for different frequency ranges.
  • The rear 6x9 inch speakers potentially handle the majority of lower frequency reproduction in this configuration, as this oval format often provides better bass output than smaller round speakers.
  • Upgrading the rear speakers might take priority over dashboard replacements when seeking sound quality improvements, given the larger surface area and potential acoustic advantages of the 6x9 inch format.
  • The contrasting speaker sizes between front and rear positions could affect stereo imaging and tonal balance, particularly if replacement speakers have significantly different sensitivity ratings.