Acura Legend Rear Deck Lid Speaker Size
The Acura Legend rear deck lid accommodates 6.5 inch speakers and supports a 6x9 inch speaker size across the model's production range. Compatible types for these units include full-range and midbass configurations within the audio system. These specifications cover the 1986 to 1995 model years.
| Year | Type | Size (inch) |
|---|---|---|
| 1995 | Full-Range | 6x9 |
| 1994 | Full-Range | 6x9 |
| 1993 | Full-Range | 6x9 |
| 1992 | Full-Range | 6x9 |
| 1991 | Full-Range | 6x9 |
| 1990 | Midbass / Full-Range | 6.5 |
| 1990 | Full-Range | 6x9 |
| 1989 | Midbass / Full-Range | 6.5 |
| 1988 | Midbass / Full-Range | 6.5 |
| 1987 | Midbass / Full-Range | 6.5 |
| 1986 | 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 installation location is the rear deck lid of the Acura Legend, a surface positioned at the base of the rear window above the trunk cavity, where speakers fire upward toward the cabin interior.
- A rear deck lid placement positions speakers at the furthest point from the front occupants, which affects soundstage depth and the degree to which rear audio fills the cabin rearward.
- The 6x9 inch oval format accommodates a larger cone surface area than a round equivalent, which increases low-frequency displacement capability within the constraints of a flat deck mounting surface.
- The elongated 6x9 inch footprint requires an oval cutout in the deck lid panel, and the available mounting depth beneath the deck surface determines whether a given driver's basket clears the trunk structure below.
- Full-range drivers, the only compatible type listed for 6x9 inch positions in the Acura Legend, reproduce frequencies across the audible spectrum from a single driver, covering bass, midrange, and treble without a separate crossover network.
- The 6.5 inch round format has a smaller cone diameter than the 6x9 oval, which reduces low-frequency excursion potential but fits within a circular mounting aperture consistent with standard round speaker cutout dimensions.
- The 1990 Acura Legend rear deck lid is specified to accept both a 6.5 inch and a 6x9 inch speaker, indicating the presence of 2 distinct mounting positions with different cutout geometries at that location.
- Midbass drivers, listed as a compatible type for the 6.5 inch positions, are optimized for the frequency range approximately between 80 Hz and 500 Hz, reinforcing lower midrange and upper bass frequencies rather than the full audible spectrum.
- A 6.5 inch position accepting both midbass and full-range types means the physical opening and depth clearance at the rear deck lid of the 1986-1990 models accommodates the mounting requirements of either driver category.
- Rear deck lid surfaces are typically flat or slightly contoured, and the mounting ring of a 6x9 inch speaker must seat flush against a flat plane to maintain an airtight seal, which affects cone resonance behavior at low frequencies.
- The acoustic energy from upward-firing rear deck drivers reflects off the rear window glass before reaching front passengers, introducing a reflective path that influences perceived tonal character at the listening position.