Merkur XR4Ti Rear Deck Lid Speaker Size
The Merkur XR4Ti rear deck lid accommodates a 5.25 inch speaker size across all listed model years. Compatible types for the location include midbass and full-range audio system units. These specifications cover a range of years from 1985 to 1989.
| Year | Type | Size (inch) |
|---|---|---|
| 1989 | Midbass / Full-Range | 5.25 |
| 1988 | Midbass / Full-Range | 5.25 |
| 1987 | Midbass / Full-Range | 5.25 |
| 1986 | Midbass / Full-Range | 5.25 |
| 1985 | Midbass / Full-Range | 5.25 |
Speaker Types
| Type | Description |
|---|---|
| Midbass | A driver tuned for upper bass and lower midrange, roughly from 80 Hz to 500 Hz. It has longer cone travel than a full-range unit, which supports stronger bass in doors and panels. |
| Full-Range | A single driver that reproduces bass through treble without a separate crossover network. It is the simplest replacement option and is common in factory audio systems. |
Additional Notes
- The rear deck lid location in the Merkur XR4Ti sits at the rear of the cabin, mounted horizontally within the parcel shelf structure behind the passenger seating area.
- A horizontal mounting orientation at the rear deck places speakers firing upward toward the headliner and rear glass, which affects how sound disperses into the cabin.
- The 5.25 inch diameter is a mid-sized cone format that balances the physical cone area needed for lower-midrange output with the shallow depth clearance typically available in a rear deck lid cavity.
- At 5.25 inches, the cone has sufficient surface area to move air effectively in the upper bass and midrange frequencies, generally covering a range from approximately 80 Hz to 5 kHz depending on driver construction.
- The midbass type is designed to reproduce frequencies in the lower-midrange and upper bass region, roughly 80 Hz to 500 Hz, where male vocals, lower string instruments, and kick drum fundamentals are present.
- A midbass driver in the rear deck lid position of the Merkur XR4Ti would direct low-midrange energy rearward and upward, reinforcing the low-end body of the cabin's overall soundstage.
- The full-range type is designed to reproduce a wider span of audible frequencies from a single driver, typically extending from the upper bass region into the lower treble, reducing the need for supplemental tweeters at that location.
- A full-range driver at the rear deck lid position handles midrange and partial high-frequency content without requiring a crossover network, which is relevant when the installation involves no active signal processing.
- The 5.25 inch format requires a mounting depth and cutout diameter consistent with that size class, and the rear deck lid of the XR4Ti must accommodate both dimensions for a flush, secure installation.
- The rear deck position places drivers at a greater distance from the front listener positions, which affects the time-alignment relationship between front and rear speakers in the cabin.