Kia Optima Rear Deck Center Speaker Size
The Kia Optima rear deck center location accommodates an 8 inch speaker size. Compatible types for the position include subwoofer units. The specifications cover a range of years from 2014 to 2017.
| Year | Type | Size (inch) |
|---|---|---|
| 2017 | Subwoofer | 8 |
| 2016 | Subwoofer | 8 |
| 2015 | Subwoofer | 8 |
| 2014 | Subwoofer | 8 |
Speaker Types
| Type | Description |
|---|---|
| Subwoofer | A large driver for the lowest bass notes, typically from about 20 Hz to 120 Hz. It is usually installed in a separate enclosure and works alongside the other speakers. |
Additional Notes
- The rear deck center location in the Kia Optima sits along the rear parcel shelf, a flat horizontal surface positioned between the rear passenger seats and the back windshield.
- Mounting at the rear deck center places a speaker in a structurally flat, wide panel that spans the width of the cabin, situating the driver unit directly beneath or flush with the rear window glass.
- An 8-inch driver occupies a relatively large cone surface area, which allows for greater air displacement compared to smaller drivers, a property directly relevant to reproducing low-frequency content from a rear deck center position.
- The Kia Optima rear deck center position, confirmed across the 2014 through 2017 model years, is exclusively compatible with subwoofer-type drivers in an 8-inch size.
- A subwoofer is a speaker type engineered to reproduce frequencies in the low bass range, typically from approximately 20 Hz to 200 Hz, where wavelengths are long and require substantial cone excursion to generate adequate sound pressure levels.
- Bass frequencies handled by a subwoofer are largely omnidirectional, meaning the rear deck center placement does not create the same localization concerns associated with mid-range or high-frequency drivers positioned off-axis from listeners.
- The rear deck surface of a sedan body style, such as the Optima, typically acts as a baffle plane, and the enclosed trunk volume beneath the deck can function acoustically as a sealed or semi-open enclosure depending on the presence of pass-through openings to the cabin.
- An 8-inch subwoofer in a rear deck center position relies partly on the trunk cavity below for back-wave absorption or reinforcement, which influences the effective low-frequency output perceived by occupants in the cabin.
- The physical depth required by an 8-inch subwoofer, including its motor structure and basket, is a relevant factor for the rear deck center location, where clearance between the mounting surface and trunk interior structures must be sufficient to accommodate the driver without obstruction.
- A subwoofer at the rear deck center does not contribute to stereo imaging or directional audio cues, as low-frequency reproduction is non-directional and the center placement reinforces bass uniformly across the seating positions.