1990 Audi 90 Speaker Sizes
The 1990 Audi 90 factory audio system features a dashboard accommodating a 4 inch speaker size, while the rear deck lid supports 6.5 inch units. Midrange, midbass, and full-range driver units serve as compatible speaker types for audio system replacement and upgrade.
Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.
| Location | Size | Type | Notes |
|---|---|---|---|
| Dashboard | 4 | Midrange |
|
| Rear Deck Lid | 6.5 | Midbass / Full-Range |
|
1990 Audi 90 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: 01990 Audi 90 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 dashboard locations in the 1990 Audi 90 accommodate 4-inch midrange speakers, which typically handle vocal frequencies and upper-bass ranges rather than providing full-spectrum sound reproduction.
- Rear deck lid positions accept 6.5-inch speakers compatible with both midbass and full-range driver configurations, offering flexibility between dedicated frequency handling and broader audio coverage.
- The single DIN radio opening follows standard dimensions of 7 inches wide by 2 inches tall, which represents the universal head unit size prevalent during this production period.
- Midrange speakers in dashboard positions generally focus on frequencies between approximately 300Hz and 5kHz, where most vocal and instrumental detail resides in typical music recordings.
- The 6.5-inch rear speakers in the 1990 Audi 90 provide larger cone area compared to the dashboard units, potentially delivering more substantial bass response and higher overall output capability.
- Full-range speakers selected for rear deck installation would handle both bass and treble frequencies from a single driver, while midbass options would typically require supplementary tweeters for high-frequency reproduction.
- The size difference between front and rear speakers suggests a factory audio design where dashboard units primarily handle midrange clarity while rear positions contribute lower frequency reinforcement.
- Aftermarket speaker selection for the rear deck could prioritize either midbass drivers for integration with separate tweeters or full-range models for simplified two-speaker replacement approaches.