1987 Cadillac Brougham Speaker Sizes

The 1987 Cadillac Brougham factory audio system features a front door panel location that accommodates a 5.25 inch speaker size, and a rear deck lid location that supports 6x9 inch units. Compatible speaker types for a replacement and upgrade include midbass and full-range options.

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

Speaker Details by Location
Location Size Type Notes
Front Door Panel 5.25 Midbass / Full-Range
  • Standard installation
  • High replacement priority
  • Replacement difficulty: low
Rear Deck Lid 6x9 Full-Range
  • Access through trunk
  • Medium replacement priority
  • Replacement difficulty: low

1987 Cadillac Brougham Speaker Replacement Summary

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

Replacement difficulty:

Low: 2 Medium: 0 High: 0

Replacement priority:

High: 1 Medium: 1 Low: 0

1987 Cadillac Brougham 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 1987 Cadillac Brougham utilizes a 5.25 inch speaker opening in the front door panels, which accommodates either midbass drivers or full-range speakers depending on system configuration preferences.
  • Full-range speakers would handle the entire frequency spectrum in the front locations, while midbass drivers would require separate tweeters or component system integration for high-frequency reproduction.
  • The rear deck lid positions accept 6x9 inch speakers designated for full-range operation, providing coverage across bass, midrange, and treble frequencies from a single speaker unit.
  • This oval 6x9 format typically offers greater cone surface area compared to round speakers of similar mounting depth, potentially contributing to enhanced low-frequency output in the rear soundstage.
  • Aftermarket speaker selection for the 1987 Cadillac Brougham would benefit from consideration of sensitivity ratings, as factory head units often provide limited power output compared to aftermarket amplification solutions.
  • Component speaker systems in the front doors could provide improved stereo imaging and frequency response compared to coaxial full-range alternatives, though installation complexity increases with separate crossover networks.
  • The Single DIN radio opening maintains standardized dimensions for head unit replacement, allowing integration of aftermarket source units with enhanced features such as digital signal processing or increased preamp voltage.
  • Sound quality improvements might be observed through replacement of factory speakers with aftermarket options featuring higher-grade materials such as polypropylene cones, butyl rubber surrounds, or silk dome tweeters in coaxial designs.
  • Power handling specifications of replacement speakers should align with available amplifier output to prevent thermal damage or mechanical failure from overpowering or underpowering the transducers.
  • The combination of front 5.25 inch and rear 6x9 inch speakers creates a mixed-size configuration that may require attention to frequency response overlap and relative output levels during system balancing.