1987 Oldsmobile Firenza Speaker Sizes
The 1987 Oldsmobile Firenza speaker size chart provides factory speaker specifications and locations for replacement or aftermarket audio system upgrades. Information includes dash-mounted speakers and rear door panel speakers. Data covers original equipment specifications to assist with aftermarket audio installations and factory speaker replacements.
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| Location | Size | Type | Notes |
|---|---|---|---|
| Dashboard | 3.5 | Full-Range |
|
| Rear Door Panel | 4x10 | Full-Range |
|
1987 Oldsmobile Firenza Speaker Replacement Summary
2
total positions
1
easy to replace
0
high priority
0
professional only
Replacement difficulty:
Low: 1 Medium: 1 High: 0Replacement priority:
High: 0 Medium: 2 Low: 01987 Oldsmobile Firenza 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 Oldsmobile Firenza dashboard positions accept 3.5-inch full-range speakers, which tend to be simpler to source than oval configurations. These compact units typically handle mid-range frequencies with reasonable clarity, though bass response remains limited by the small cone area.
- Rear door panel installations in this platform utilize 4x10 inch oval full-range speakers. This particular size was common during the mid-to-late 1980s but has become less prevalent in contemporary aftermarket catalogs, which could narrow replacement options somewhat.
- Full-range speaker types in both locations suggest the factory audio system was designed without dedicated component separation. Aftermarket full-range replacements often incorporate textile or polymer dome tweeters alongside the main cone to extend frequency response beyond what the original equipment typically provided.
- The single DIN radio opening allows for modern head unit upgrades, which may be worth considering before speaker replacement. Enhanced power output and equalization capabilities from a newer receiver could influence the type and sensitivity rating of replacement speakers selected for the 1987 Oldsmobile Firenza.
- Given the limited cone area in both dashboard and rear locations, managing expectations regarding bass output would be practical. Aftermarket speakers in these sizes generally emphasize vocal clarity and midrange detail rather than low-frequency extension, unless paired with a supplemental subwoofer installation.