1990 Nissan 240SX Speaker Sizes
The 1990 Nissan 240SX speaker size chart provides factory specifications for replacement or aftermarket upgrade purposes. Information covers locations throughout the audio system, including front door panel and rear deck lid positions. Data identifies stock configurations to assist with speaker replacements or aftermarket installations that maintain compatibility with original factory mounting points and wiring harnesses.
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| Location | Size | Type | Notes |
|---|---|---|---|
| Front Door Panel | 4x6 | Full-Range |
|
| Rear Deck Lid | 6x9 | Full-Range |
|
1990 Nissan 240SX 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: 01990 Nissan 240SX 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 1990 Nissan 240SX uses two distinct speaker formats, with smaller units mounted in the front door panels and larger units positioned in the rear deck lid.
- Front door panel locations accept 4x6 inch full-range speakers, which tend to prioritize vocal clarity and midrange frequency response over low-frequency output.
- Rear deck lid positions accommodate 6x9 inch full-range speakers, which typically offer broader frequency range and higher bass potential compared to the smaller front units.
- Full-range speaker designs integrate woofer and tweeter elements into single units, eliminating the need for separate crossovers or component installations in these factory locations.
- The size difference between front and rear speakers suggests the rear deck location handles more of the lower frequency reproduction in the factory audio design.
- Aftermarket speaker replacements often focus on the rear deck position first due to the larger cone area available for sound production in the 6x9 inch format.
- The single DIN radio opening provides standard dimensions for head unit replacement, allowing integration with contemporary aftermarket receivers that may drive upgraded speakers more effectively.
- Speaker upgrades in both locations would likely produce noticeable sound improvement, particularly in bass response and overall volume capability compared to aged factory units.