Mercury Tracer Dashboard Speaker Size
The Mercury Tracer dashboard accommodates a 4 inch speaker size. Midrange units are the compatible type for the dashboard location. These specifications cover the years 1988 and 1989.
| Year | Type | Size (inch) |
|---|---|---|
| 1989 | Midrange | 4 |
| 1988 | 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 dashboard is the installation location across all listed model years, placing speakers in the front of the cabin near the windshield, which positions sound at a high, forward-facing point relative to the listening area.
- Dashboard enclosures are typically shallow and spatially restricted, limiting the depth available for speaker basket and magnet assembly clearance.
- A 4-inch speaker diameter corresponds to a relatively small cone surface area, which reduces the amount of air the driver can move and focuses the speaker's effective output toward the upper frequency bands.
- In a dashboard location, a 4-inch driver's limited low-frequency extension is offset by the placement advantage of directing sound toward the front of the cabin at ear level, reinforcing mid and upper-mid frequencies across the listening space.
- The Mercury Tracer dashboard accommodates only 4-inch drivers across the 1988 and 1989 model years, indicating a consistent physical cavity size for both years.
- Midrange is the sole compatible speaker type listed for the dashboard location in both model years, designating drivers engineered to reproduce the middle portion of the audible frequency spectrum, roughly 300 Hz to 5 kHz in general acoustic terms.
- Midrange drivers are designed without the large excursion characteristics of woofers, making the shallow depth of a dashboard mounting location acoustically and mechanically appropriate for the type.
- A midrange driver in the dashboard position handles fundamental vocal frequencies and a significant portion of instrument harmonics, covering the frequency band most perceptible to human hearing in typical listening conditions.
- Because midrange drivers are not responsible for low-frequency reproduction, the dashboard location for the Mercury Tracer does not serve bass reinforcement functions in the listed configurations.
- Midrange speaker types are generally not crossed over to handle high-frequency transients such as those above approximately 5 kHz, placing the upper reproduction limit of the dashboard speakers well below the range covered by tweeters.