Nissan Pulsar NX Front Door Panel Speaker Size
The Nissan Pulsar NX front door panel accommodates a 6.5 inch speaker size in the front door location. Compatible types for the front door panel include midbass and full-range audio units. These specifications cover the 1990 model year.
| Year | Type | Size (inch) |
|---|---|---|
| 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 front door panel location in the 1990 Nissan Pulsar NX accommodates a 6.5 inch speaker cutout, a diameter that fits within the spatial constraints typical of compact hatchback door cavities.
- Door panel installations are generally surface-mounted or recessed into a molded pocket within the inner door skin, with the speaker basket oriented to fire inward toward the cabin.
- A 6.5 inch driver occupies a moderate cone surface area, which in a door panel location translates to coverage of lower midrange and upper bass frequencies where door-mounted speakers are acoustically most effective due to proximity to the floor and panel reinforcement.
- The door panel cavity behind a 6.5 inch installation acts as an enclosure, and the volume and rigidity of that cavity influence the low-frequency extension the driver can reproduce.
- Midbass is one of the 2 compatible types listed for the 1990 Nissan Pulsar NX front door panel, and a midbass driver is designed to reproduce frequencies roughly between 80 Hz and 500 Hz, handling the lower portion of the midrange and upper bass bands without attempting to extend into treble reproduction.
- A midbass driver in a front door location reinforces the fundamental frequencies of vocals and instruments at a position that is acoustically advantageous for lower-frequency staging within the cabin.
- Full-range is the second compatible type listed for the front door panel position, and a full-range driver is a single-cone or multi-cone unit engineered to reproduce a wide frequency band, typically from around 60 Hz up to 20 kHz, without requiring a separate tweeter.
- When a full-range driver is used in a door panel location, the high-frequency dispersion is affected by the angle of the door relative to the listener, as door-mounted speakers fire across the footwell rather than directly at ear level.
- The 6.5 inch diameter supports a voice coil and cone mass combination that can handle the mechanical excursion associated with midbass output while remaining compact enough for door panel depth clearances.
- Mounting depth is a practical constraint in front door panel installations because the inner door structure, window regulator, and wiring harness limit how far a speaker basket can extend behind the mounting surface.