Toyota Tercel Rear Side Panel Speaker Size
The Toyota Tercel rear side panel location accommodates a 4 inch speaker size. Midrange units represent the compatible audio type for the rear side panel. These specifications apply to the 1990 model year.
| Year | Type | Size (inch) |
|---|---|---|
| 1990 | Midrange | 4 |
Speaker Types
| Type | Description |
|---|---|
| Midrange | A driver for the middle of the audible range, typically from about 300 Hz to 5,000 Hz, where vocals and most instruments sit. It is often paired with a tweeter and a woofer. |
Additional Notes
- The rear side panel location in the 1990 Toyota Tercel accommodates a 4-inch speaker opening.
- A 4-inch driver in a rear side panel position operates within a spatially constrained enclosure formed by the vehicle's interior trim and body panels, which influences its acoustic output and low-frequency extension.
- 4-inch speakers are dimensionally suited to shallow or narrow cavities, as the smaller cone diameter requires less mounting depth than larger drivers, making rear side panel fitment in compact vehicles feasible.
- The rear side panel mounting position places the driver toward the lower rear of the passenger compartment, angling sound output toward the cabin interior rather than directly at listeners in the front seats.
- Midrange drivers are designed to reproduce frequencies in the approximately 500 Hz to 5,000 Hz band, which covers the core vocal and instrumental presence range of the audio spectrum.
- A midrange type in the rear side panel of the Toyota Tercel contributes to filling the mid-frequency content within the rear cabin zone, supplementing sound energy in the area behind the primary listening position.
- 4-inch midrange drivers have a cone surface area small enough that high-frequency dispersion remains moderately broad, though the driver is not optimized for reproducing treble detail or deep bass extension.
- The rear side panel is a fixed, non-adjustable mounting surface, meaning the speaker's orientation and angle relative to passengers is determined entirely by the panel geometry rather than by an adjustable mount.