1979 Nissan 280ZX Speaker Sizes

The 1979 Nissan 280ZX factory audio system features dashboard locations that accommodate 4 inch speakers, and rear door panel locations that support 5.25 inch units. The dashboard location also accommodates a 4 inch speaker size. Compatible speaker types for system replacement and audio upgrade include midrange, midbass, and full-range options.

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

Speaker Details by Location
Location Size Type Notes
Dashboard 4 Midrange
  • Requires panel disassembly
  • Medium replacement priority
  • Replacement difficulty: medium
Rear Door Panel 5.25 Midbass / Full-Range
  • Standard installation
  • Medium replacement priority
  • Replacement difficulty: low

1979 Nissan 280ZX Speaker Replacement Summary

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

Replacement difficulty:

Low: 1 Medium: 1 High: 0

Replacement priority:

High: 0 Medium: 2 Low: 0

1979 Nissan 280ZX 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 1979 Nissan 280ZX positions 4-inch speakers in the dashboard, restricting the mounting area to midrange drivers that focus on vocal and instrumental frequencies rather than comprehensive sound reproduction.
  • Rear door panel locations accept 5.25-inch speakers, offering space for either midbass drivers that handle lower frequencies or full-range speakers that attempt to cover the entire audible spectrum within a single cone design.
  • Dashboard speaker replacement may take priority when midrange clarity degrades, as this location typically handles dialogue and lead instrument reproduction in the factory configuration.
  • The 5.25-inch rear openings suggest potential for improved bass response compared to the smaller dashboard speakers, particularly when fitted with dedicated midbass drivers featuring stiffer cone materials and larger voice coils.
  • Coaxial speakers in the rear door panel position could provide treble extension that the dashboard midrange units lack, though mounting angle and grille interference might affect high-frequency dispersion.
  • Component speaker systems face installation challenges given the dashboard's midrange-only sizing, likely requiring supplemental tweeter mounting locations for proper frequency distribution across the listening area.
  • The single DIN radio opening maintains the original head unit footprint, which may limit amplification power available to drive aftermarket speakers with higher sensitivity requirements or lower impedance ratings.
  • Upgrading to speakers with higher power handling ratings than the original equipment could stress the factory head unit's output capacity, particularly if the replacement drivers feature impedance drops below 4 ohms during operation.