1991 Geo Prizm Speaker Sizes
The 1991 Geo Prizm factory audio system features a dashboard location that accommodates a 4 inch speaker size, while the rear deck lid supports 5x7 inch units. Compatible types for an audio replacement upgrade include midrange and full-range units.
Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.
| Location | Size | Type | Notes |
|---|---|---|---|
| Dashboard | 4 | Midrange |
|
| Rear Deck Lid | 5x7 | Full-Range |
|
1991 Geo Prizm 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: 01991 Geo Prizm 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 Geo Prizm features two distinct speaker locations, each accommodating different sizes and serving specific audio functions within the factory sound system configuration.
- Dashboard positions contain 4 inch speakers configured as midrange drivers, suggesting these handle middle frequency reproduction rather than full-spectrum audio output in the original setup.
- The rear deck lid supports 5x7 inch full-range speakers, which typically reproduce a broader frequency spectrum compared to the midrange units found in the dashboard locations.
- Replacement of the rear deck speakers might take priority for those seeking general audio enhancement, as full-range drivers contribute more comprehensively to overall sound reproduction than specialized midrange units.
- The 1991 Geo Prizm utilizes a single DIN radio format, which provides a standardized opening for aftermarket head unit installation if audio upgrades extend beyond speaker replacement.
- Midrange speakers in the dashboard positions may benefit from pairing with separate woofers or subwoofers to reproduce lower frequencies that fall outside their designed range.
- The 5x7 inch format in the rear deck offers compatibility with various aftermarket full-range speakers that can provide improved sensitivity, power handling, and frequency response over factory units.
- Sound improvement potential may vary between locations, with the rear deck offering broader frequency coverage while dashboard positions contribute primarily to vocal clarity and instrumental definition in the mid-frequencies.