1990 Pontiac Firebird Speaker Sizes
The 1990 Pontiac Firebird speaker size chart provides factory speaker specifications and locations for replacement or upgrade purposes. Information covers front door panel and rear door panel positions within the audio system. Data includes aftermarket speaker specifications to facilitate installation of compatible components in factory locations.
As an Amazon Associate, we may earn a commission from purchases made through links marked. Read more in our disclaimer.
| 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.