1991 Nissan NX Speaker Sizes

The 1991 Nissan NX factory audio system includes front door panels that accommodate 4x6 inch units, and rear side panels accept a 6.5 inch speaker size. Compatible speaker types for system replacement and upgrade include full-range and midbass.

Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.

Speaker Details by Location
Location Size Type Notes
Front Door Panel 4x6 Full-Range
  • Standard installation
  • High replacement priority
  • Replacement difficulty: low
Rear Side Panel 6.5 Midbass / Full-Range
  • Requires trim removal
  • Medium replacement priority
  • Replacement difficulty: medium

1991 Nissan NX Speaker Replacement Summary

2 total positions
1 easy to replace
1 high priority
0 professional only

Replacement difficulty:

Low: 1 Medium: 1 High: 0

Replacement priority:

High: 1 Medium: 0 Low: 1

1991 Nissan NX Radio Slot Size (DIN)

DIN Type Size (inch) Size (mm) Notes
Single DIN 7"×2" 180×50 Standard size for basic car radios with small display or no display
  • Always measure the slot before purchasing a new radio
  • Check slot depth - it may vary

Additional Notes

  • The front door panels in the 1991 Nissan NX accommodate 4x6 inch full-range speakers, which may be prioritized for replacement given their direct impact on the driver and front passenger listening experience.
  • Full-range speakers for the front position would handle the entire frequency spectrum from a single cone, eliminating the need for separate tweeters or crossovers in this location.
  • The rear side panels accept 6.5 inch speakers, which offer flexibility between midbass drivers for enhanced low-frequency response or full-range configurations depending on the desired audio setup.
  • Midbass-capable speakers in the rear position could provide better bass reproduction compared to smaller 4x6 inch front speakers, potentially balancing the overall sound distribution throughout the cabin.
  • The combination of 4x6 inch front and 6.5 inch rear speakers in the 1991 Nissan NX suggests a factory configuration where larger rear drivers might compensate for the limited bass output from the smaller front units.
  • Sound improvement could be achieved by selecting higher sensitivity speakers for the front position, which would produce greater output from the factory head unit's power.
  • The single DIN radio opening allows for straightforward aftermarket receiver upgrades without requiring dash modifications or additional adapter kits beyond the standard mounting sleeve.
  • Replacing the rear speakers with dedicated midbass drivers might create a more defined low-frequency foundation, particularly if the front speakers are upgraded to components with separate tweeters.