Lexus GS450h Center Dash Speaker Size
The Lexus GS450h center dash location accommodates a 4 inch speaker size. Midrange units are the compatible types for this audio system. These specifications cover the years 2015 to 2017.
| Year | Type | Size (inch) |
|---|---|---|
| 2017 | Midrange | 4 |
| 2016 | Midrange | 4 |
| 2015 | 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 center dash location in the Lexus GS450h positions speakers at the top of the instrument panel, near the base of the windshield, placing them at a relatively elevated angle toward the listening area of the cabin.
- A speaker mounted at the center dash receives a degree of acoustic reinforcement from the windshield surface, which can reflect and distribute sound toward front-seat occupants.
- The 4-inch diameter specified for the Lexus GS450h center dash represents a compact cone area, which limits low-frequency output but allows for relatively precise placement in the shallow, constrained cavity typical of instrument panel locations.
- A 4-inch speaker in a center dash position operates with limited enclosure depth behind the mounting surface, which influences the bass extension and overall efficiency of the driver.
- The center dash mounting point is a symmetrically centered position along the vehicle's horizontal axis, a placement associated with anchoring the stereo image for front-seat listeners.
- Midrange speakers are specifically designed to reproduce frequencies roughly between 300 Hz and 5,000 Hz, covering the core of vocal and instrumental content in an audio signal.
- A midrange type at the center dash location reinforces vocal clarity and dialogue intelligibility, frequency ranges where the human ear is most sensitive to directional cues.
- The 4-inch size paired with a midrange type means the driver handles only the middle portion of the frequency spectrum, without the excursion demands required for bass reproduction, which suits the limited rear-volume conditions behind a dash panel.
- Midrange drivers typically employ a relatively stiff cone and a controlled surround to maintain accuracy across the vocal frequency band without distortion introduced by excessive excursion.
- The center dash position places the speaker closer to ear level than door-mounted locations, making the midrange type at this position particularly relevant to the perceived front soundstage height for seated occupants.