1989 Audi 90 Speaker Sizes
The 1989 Audi 90 speaker size chart provides factory specifications for audio system locations throughout the vehicle. Information covers replacement and upgrade options for speakers in the dashboard and rear deck lid positions. Aftermarket speaker specifications are listed to assist with audio system modifications from factory configurations.
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| Location | Size | Type | Notes |
|---|---|---|---|
| Dashboard | 4 | Midrange |
|
| Rear Deck Lid | 6.5 | Midbass / Full-Range |
|
1989 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: 01989 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 1989 Audi 90 dashboard positions accommodate 4-inch midrange speakers, which handle vocal and instrumental frequencies without extending into deep bass or high treble ranges.
- Replacing dashboard speakers may address clarity in the upper-midrange spectrum, though the limited cone area restricts low-frequency output inherently.
- Rear deck lid locations accept 6.5-inch speakers with options for either midbass or full-range configurations, offering flexibility based on system design preferences.
- Midbass speakers in the rear deck would complement the dashboard midranges by reproducing lower frequencies that 4-inch drivers cannot adequately produce.
- Full-range speakers in the rear deck positions could function independently without requiring additional tweeters, though performance across the entire frequency spectrum tends to involve compromises.
- The larger cone surface area of 6.5-inch speakers typically produces more substantial bass response compared to smaller dashboard units.
- Prioritizing rear deck replacements might yield more noticeable improvements in overall sound quality due to the greater potential for bass reproduction and higher power handling.
- Aftermarket speakers in the 6.5-inch size category generally offer wider selection and potentially better value compared to the less common 4-inch midrange market.