Nissan Pulsar NX Rear Deck Lid Speaker Size
The Nissan Pulsar NX rear deck lid accommodates a 5.25 inch speaker size. Compatible types for the location include midbass and full-range audio system units. These specifications cover the 1990 model year.
| Year | Type | Size (inch) |
|---|---|---|
| 1990 | 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 of the 1990 Nissan Pulsar NX is the horizontal panel located beneath the rear window, a surface that typically places speakers in an upward-firing orientation toward the cabin interior.
- An upward-firing position on a rear deck lid tends to reflect sound off the rear windshield glass, which can influence the perceived stereo imaging and spatial distribution of audio throughout the cabin.
- The 5.25-inch diameter specified for the Nissan Pulsar NX rear deck lid represents a mid-sized driver, dimensioned to balance low-frequency extension with the physical constraints of the deck lid panel cutout.
- A 5.25-inch driver occupies a mounting depth and baffle cutout that suits moderately shallow cavities, consistent with the typically limited vertical clearance found within rear deck lid structures above the trunk space.
- At 5.25 inches, a driver produces meaningful output in the upper bass and midrange frequencies, generally covering a range from approximately 80 Hz to 5 kHz depending on the specific unit installed.
- Midbass is one of the 2 compatible types listed for the 1990 rear deck lid position, and a midbass driver in this size is designed to handle lower midrange and upper bass frequencies while crossing over to a separate tweeter for high-frequency reproduction.
- A midbass driver installed in a rear deck lid location relies on the enclosure volume formed by the trunk cavity beneath the panel to support low-frequency output, as the trunk space can act as an acoustic chamber.
- Full-range is the second compatible type listed for the 1990 position, and a full-range driver at 5.25 inches is designed to reproduce a wide frequency spectrum from a single cone, covering bass, midrange, and high-frequency content without requiring additional components in that location.
- A full-range driver in a rear deck lid position must manage the acoustic interaction between upward-firing output and reflective surfaces, including the rear glass and headliner, which affects the tonal balance heard by occupants.