1991 Buick Reatta Speaker Sizes
The 1991 Buick Reatta factory audio system features a dashboard accommodating 4 inch speakers, and the rear accepts 6.5 inch units. Midrange, midbass, and full-range units serve as compatible replacement and upgrade options for an 8 inch speaker size.
Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.
| Location | Size | Type | Notes |
|---|---|---|---|
| Dashboard | 4 | Midrange |
|
| Rear | 6.5 | Midbass / Full-Range |
|
1991 Buick Reatta Speaker Replacement Summary
2
total positions
0
easy to replace
0
high priority
0
professional only
Replacement difficulty:
Low: 0 Medium: 2 High: 0Replacement priority:
High: 0 Medium: 2 Low: 01991 Buick Reatta 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 1991 Buick Reatta features a two-location speaker configuration with dashboard-mounted 4-inch midrange units and 6.5-inch rear speakers that accommodate either midbass or full-range drivers, suggesting different roles in the audio staging.
- Dashboard speakers at 4 inches are limited to midrange frequencies, which may benefit from replacement with higher-quality drivers that handle vocal clarity and instrumental detail in the upper-middle frequency spectrum.
- Rear 6.5-inch locations provide flexibility, as they can house dedicated midbass drivers for low-frequency support or full-range speakers that handle a broader spectrum, depending on whether a component or coaxial approach is preferred.
- The single DIN radio opening provides standard compatibility with aftermarket head units, which could serve as the foundation for improved source quality before addressing speaker upgrades.
- Prioritizing the rear 6.5-inch locations might yield noticeable improvements in bass response and overall fullness, particularly if the factory speakers lack adequate cone material or magnet strength.
- Midrange-specific dashboard speakers suggest that high frequencies are handled elsewhere in the audio system or remain limited, which may influence whether tweeters need to be added during upgrades.
- Component speakers in the rear position would separate midbass duties from higher frequencies, though this depends on whether the dashboard midrange units can handle the upper spectrum adequately.
- Full-range 6.5-inch speakers offer a simpler replacement path with fewer installation complications, consolidating multiple frequencies into a single driver without requiring crossovers or additional mounting.