1987 Chevrolet Blazer Speaker Sizes
The 1987 Chevrolet Blazer factory audio system includes a dashboard accommodating 3.5 inch speakers and a rear door panel accepting 4x10 inch units. Full-range drivers serve as compatible speaker types for a sound system replacement and upgrade, utilizing a 3.5 inch speaker size alongside the larger 4x10 inch units.
Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.
| 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.