1990 Buick Riviera Speaker Sizes
The 1990 Buick Riviera factory audio system includes specific mounting areas for aftermarket components. Front door panels accommodate 4x6 inch speakers, while the rear deck lid accepts 6x9 inch units. Full-range drivers serve as standard replacement and upgrade options for both locations.
Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.
| Location | Size | Type | Notes |
|---|---|---|---|
| Front Door Panel | 4x6 | Full-Range |
|
| Rear Deck Lid | 6x9 | Full-Range |
|
1990 Buick Riviera 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 Buick Riviera 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 Riviera features factory speakers in both front door panels and rear deck lid positions, with the front locations accommodating smaller 4x6 inch units while the rear deck provides space for larger 6x9 inch speakers.
- Both speaker locations support full-range drivers, which handle the entire audio frequency spectrum from a single cone assembly rather than requiring separate woofers and tweeters.
- The rear deck lid speakers typically receive upgrade attention first due to their larger 6x9 inch size, which generally allows for better bass response and overall sound output compared to the more spatially constrained front door panel speakers.
- Aftermarket full-range speakers in these sizes often include integrated tweeters and more robust cone materials than factory units, potentially improving clarity in higher frequencies and midrange definition.
- The single DIN radio opening allows for straightforward head unit replacement with most aftermarket receivers, which may provide additional power output to drive upgraded speakers more effectively than the factory radio.
- Full-range speaker replacements in the 4x6 inch size tend to offer limited low-frequency extension due to the smaller cone area, though some aftermarket models incorporate polypropylene or composite cone materials that enhance bass response within physical constraints.
- The 6x9 inch rear speakers may benefit from aftermarket options featuring three-way or four-way designs, which add dedicated midrange drivers and multiple tweeters to improve sound staging and frequency separation.