1990 Buick Reatta Speaker Sizes
Speaker size chart for the 1990 Buick Reatta includes factory speaker locations and specifications for replacement or aftermarket upgrade purposes. Information covers dashboard and rear speaker positions within the audio system. Data provides details on OEM speakers installed at each location to assist with aftermarket audio system modifications.
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| Location | Size | Type | Notes |
|---|---|---|---|
| Dashboard | 4 | Midrange |
|
| Rear | 6.5 | Midbass / Full-Range |
|
1990 Buick Reatta Speaker Replacement Summary
2
total positions
0
easy to replace
0
high priority
0
professional only
Replacement difficulty:
Low: 0 Medium: 2 High: 0Replacement priority:
High: 0 Medium: 2 Low: 01990 Buick Reatta 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 Buick Reatta features dashboard-mounted 4-inch midrange speakers that handle mid-frequency audio reproduction, while 6.5-inch rear speakers support either midbass or full-range configurations for broader frequency coverage.
- Dashboard midrange speakers typically focus on vocal and instrumental clarity in the 300Hz to 5kHz range, whereas the rear position may benefit from full-range replacements that deliver both mid and higher frequencies without requiring separate tweeters.
- The 6.5-inch rear location likely represents the primary low-frequency source in this two-position configuration, suggesting that midbass-capable aftermarket speakers could enhance bass response when paired with the existing dashboard midranges.
- Single DIN radio compatibility indicates a standard 2-inch tall head unit opening, which maintains compatibility with most aftermarket receivers and signal processors that could drive upgraded speakers.
- Replacing the rear speakers first might yield more noticeable sound improvement due to their larger cone area and ability to move more air compared to the smaller dashboard units.
- Component-style aftermarket speakers in the rear position could provide better frequency separation when combined with external crossovers, though full-range coaxial designs offer simpler installation with integrated tweeter elements.
- The dashboard midrange position may limit low-frequency output regardless of speaker quality due to mounting location and size constraints, making the rear speakers more critical for overall system balance.