1999 Acura NSX Speaker Sizes
The 1999 Acura NSX factory audio system features front door panels that accommodate 5.25 inch speakers, and the rear deck lid supports a 6.5 inch speaker size. Midbass and full-range units serve as compatible replacement and upgrade options for the vehicle.
Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.
| Location | Size | Type | Notes |
|---|---|---|---|
| Front Door Panel | 5.25 | Midbass / Full-Range |
|
| Rear Deck Lid | 6.5 | Midbass / Full-Range |
|
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: 0Replacement priority:
High: 1 Medium: 1 Low: 01999 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.