1990 Audi 90 Speaker Sizes
The 1990 Audi 90 speaker size chart provides factory specifications for replacement or aftermarket audio system components. Information includes speaker locations in the dashboard and rear deck lid. Data covers OEM audio system configurations to assist with upgrade planning and identification of compatible aftermarket speakers based on factory specifications.
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| 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.