1991 Infiniti G20 Speaker Sizes
The 1991 Infiniti G20 factory audio system features front door panels that accommodate a 6.5 inch speaker size, while the rear deck lid supports 6x9 inch units. Midbass and full-range driver configurations serve as viable replacement and upgrade options for audio restoration projects.
Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.
| Location | Size | Type | Notes |
|---|---|---|---|
| Front Door Panel | 6.5 | Midbass / Full-Range |
|
| Rear Deck Lid | 6x9 | Full-Range |
|
1991 Infiniti G20 Speaker Replacement Summary
2
total positions
2
easy to replace
1
high priority
0
professional only
Replacement difficulty:
Low: 2 Medium: 0 High: 0Replacement priority:
High: 1 Medium: 1 Low: 01991 Infiniti G20 Radio Slot Size (DIN)
| DIN Type | Size (inch) | Size (mm) | Notes |
|---|---|---|---|
| Single DIN or Double DIN | 7"×2" or 7"×4" | 180×50 or 180×100 | Vehicle supports both radio sizes |
- Always measure the slot before purchasing a new radio
- Check slot depth - it may vary
Additional Notes
- The 1991 Infiniti G20 features two distinct speaker locations with different size requirements, which may influence replacement planning based on listening priorities and budget considerations.
- Front door panel positions accommodate 6.5-inch speakers that can function as either midbass drivers or full-range units, providing flexibility in system configuration depending on whether additional tweeters or crossovers are incorporated.
- Rear deck lid positions utilize 6x9-inch speakers designated for full-range operation, which typically offer broader frequency response compared to smaller formats due to their larger surface area and oval configuration.
- The size difference between front and rear speakers suggests a factory configuration that may have relied on the larger rear units for extended frequency coverage, though modern component systems often prioritize front stage imaging.
- Full-range compatibility in both locations indicates the factory system likely operated without separate tweeters, meaning replacement speakers with integrated tweeters or coaxial designs could maintain or improve high-frequency response.
- Midbass capability in the front doors suggests these positions could support component system installations where dedicated woofers handle lower frequencies while separate tweeters manage higher ranges.
- The 6x9-inch format in the rear deck typically provides greater bass output potential compared to round 6.5-inch speakers, though installation depth and mounting requirements vary between these formats.
- Both single DIN and double DIN radio compatibility provides options for head unit upgrades, with double DIN openings potentially accommodating touchscreen interfaces and advanced audio processing features that could enhance speaker performance.