Subaru XT Rear Deck Lid Speaker Size
The Subaru XT rear deck lid accommodates a 6.5 inch speaker size across all listed model years. Compatible types for that location include midbass and full-range audio system units. These specifications cover the 1990 to 1991 replacement chart range.
| Year | Type | Size (inch) |
|---|---|---|
| 1991 | Midbass / Full-Range | 6.5 |
| 1990 | Midbass / Full-Range | 6.5 |
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 1990 and 1991 Subaru XT positions speakers within the rearmost horizontal surface of the vehicle, placing the drivers behind or beneath a perforated or grille-covered panel that faces upward toward the cabin.
- A deck lid mounting position relies on reflected and diffused sound projection, as the drivers face the headliner and rear glass rather than directly toward the listening area.
- The 6.5-inch diameter specified for the Subaru XT rear deck lid represents a mid-size woofer cone surface area capable of moving enough air to reproduce lower midrange and upper bass frequencies with meaningful output.
- At 6.5 inches, the cone excursion and mass characteristics support frequency reproduction roughly in the range of 60 Hz to 5 kHz, depending on driver design and enclosure conditions.
- The rear deck lid cavity beneath the mounting surface functions as an informal enclosure, and its volume and material composition affect the low-frequency loading of a 6.5-inch driver installed in the Subaru XT rear deck lid.
- A midbass driver in the 6.5-inch format at the rear deck lid position handles the lower midrange band, typically from approximately 80 Hz to 500 Hz, reinforcing warmth and body in the overall sound field.
- Midbass drivers are not designed to reproduce high-frequency content, so a rear deck lid installation using a midbass type would function as part of a multi-way system, relying on separate tweeters positioned elsewhere in the cabin.
- A full-range driver in the 6.5-inch format is built to reproduce a wider frequency span from bass through high-frequency content within a single driver, making the rear deck lid position a standalone sound source when a full-range type is installed.
- The upward-facing orientation of a rear deck lid speaker means high-frequency content from a full-range 6.5-inch driver disperses toward the headliner before reaching passengers, which affects perceived treble definition.
- The rear deck lid position in a compact vehicle such as the Subaru XT places the speakers in close proximity to the rear glass, which can introduce acoustic reflections that interact with the direct output of the 6.5-inch driver.