1990 Pontiac Firebird Speaker Sizes
The 1990 Pontiac Firebird factory audio system features front door panel and rear door panel locations that accommodate 6.5 inch speakers. Midbass and full-range units serve as compatible speaker types for audio replacement and upgrade procedures.
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 Door Panel | 6.5 | Midbass / Full-Range |
|
1990 Pontiac Firebird 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: 01990 Pontiac Firebird 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 1990 Pontiac Firebird front door panel speaker opening accepts 6.5 inch drivers, which can accommodate either midbass or full-range speaker types depending on the desired audio configuration.
- Rear door panel speaker locations mirror the front specifications with the same 6.5 inch size capacity and compatibility with midbass or full-range drivers.
- Full-range speakers in these positions would handle the entire frequency spectrum from a single driver, while midbass speakers would typically require separate tweeters or coaxials for higher frequencies.
- The single DIN radio opening provides standard mounting space for aftermarket head units, which may influence speaker selection based on power output capabilities.
- Upgrading from factory speakers in these positions could potentially improve clarity and bass response, particularly if the original drivers have deteriorated over time.
- The consistent 6.5 inch sizing across all four doors simplifies the replacement process when selecting matched speaker sets for balanced sound staging.
- Midbass-focused drivers in these locations would typically operate in the 80-5000 Hz range, requiring crossover integration with higher frequency components.