1987 Chevrolet Blazer Speaker Sizes
The 1987 Chevrolet Blazer speaker size chart provides factory speaker specifications for replacement or aftermarket audio system upgrade. Information includes speaker locations in the dashboard and rear door panel areas. Factory specifications detail installation positions within the audio system to facilitate aftermarket component replacement and audio upgrades.
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| Location | Size | Type | Notes |
|---|---|---|---|
| Dashboard | 3.5 | Full-Range |
|
| Rear Door Panel | 4x10 | Full-Range |
|
1987 Chevrolet Blazer 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: 0Additional Notes
- The dashboard location in the 1987 Chevrolet Blazer uses a 3.5 inch full-range speaker, which suggests it may be among the more straightforward positions to address when considering a replacement, given that smaller full-range drivers tend to have a relatively limited number of compatible aftermarket options compared to more standard sizing.
- The rear door panel position accommodates a 4x10 inch full-range speaker, an oval format that is somewhat less common in the aftermarket than round configurations, which could mean that sourcing a direct-fit replacement might involve a narrower selection of available units.
- Full-range drivers at both locations indicate that the factory audio setup likely relies on each speaker to reproduce the entire audible frequency spectrum independently, without a dedicated crossover network or separate tweeter arrangement, which tends to result in a more limited high-frequency response compared to component speaker systems.
- Replacing either location with aftermarket full-range units of the same sizing could potentially yield noticeable improvements in frequency response and overall clarity, particularly in the upper midrange and high-frequency regions where factory-installed speakers of this era often show the most audible limitations.
- The rear door panel position, given its larger cone surface area relative to the dashboard unit, may contribute more to low-midrange output, suggesting that prioritizing replacement at that location could have a relatively greater effect on perceived sound fullness.