1999 Acura NSX Speaker Sizes

The 1999 Acura NSX speaker size chart provides factory specifications for audio system components. Information covers replacement and upgrade options for two primary locations: front door panel and rear deck lid. Details include aftermarket compatibility and factory speaker specifications to assist with audio system modifications.

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Speaker Details by Location
Location Size Type Notes
Front Door Panel 5.25 Midbass / Full-Range
  • Standard installation
  • High replacement priority
  • Replacement difficulty: low
Rear Deck Lid 6.5 Midbass / Full-Range
  • Access through trunk
  • Medium replacement priority
  • Replacement difficulty: low

1999 Acura NSX Speaker Replacement Summary

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

Replacement difficulty:

Low: 2 Medium: 0 High: 0

Replacement priority:

High: 1 Medium: 1 Low: 0

1999 Acura NSX 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 1999 Acura NSX features factory speaker locations in both front door panels and rear deck lid positions, with different size requirements for each area.
  • Front door panel positions accommodate 5.25 inch speakers, which tend to be smaller than typical automotive applications but work within the spatial constraints of this mid-engine configuration.
  • Rear deck lid locations accept 6.5 inch speakers, providing a larger cone area compared to the front positions for potentially greater output in lower frequencies.
  • Both locations support either midbass or full-range speaker types, allowing flexibility in system design depending on whether separate tweeters and subwoofers are part of the audio configuration.
  • Midbass speakers at these sizes generally handle frequencies from approximately 80 Hz to 4 kHz, focusing on midrange clarity and upper bass response without dedicated high-frequency reproduction.
  • Full-range speakers incorporate integrated tweeters or whizzer cones to extend frequency response up to 20 kHz, eliminating the need for separate high-frequency drivers in simpler installations.
  • The rear deck lid placement may benefit from midbass-focused speakers when front components handle high frequencies, creating a more balanced soundstage with proper imaging.
  • Single DIN radio compatibility means aftermarket head units must conform to the standard 2 inch height specification, which encompasses most basic and intermediate receiver models.
  • Replacing factory speakers in the rear deck location might yield noticeable improvements in bass response given the larger cone area compared to front positions.
  • The size difference between front and rear speakers suggests a factory design that likely emphasized rear fill and bass reinforcement from the deck-mounted drivers.