1990 Lexus LS400 Speaker Sizes
The 1990 Lexus LS400 speaker size chart provides replacement and upgrade specifications for factory audio locations. Information includes aftermarket speaker requirements for front door panel, rear door panel, and center console positions. Data assists with matching compatible components when modifying or restoring the factory audio system.
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| Location | Size | Type | Notes |
|---|---|---|---|
| Center Console | 8 | Subwoofer |
|
| Front Door Panel | 6.5 | Midbass / Full-Range |
|
| Rear Door Panel | 6.5 | Midbass / Full-Range |
|
1990 Lexus LS400 Speaker Replacement Summary
3
total positions
2
easy to replace
1
high priority
0
professional only
Replacement difficulty:
Low: 2 Medium: 1 High: 0Replacement priority:
High: 1 Medium: 2 Low: 01990 Lexus LS400 Radio Slot Size (DIN)
| DIN Type | Size (inch) | Size (mm) | Notes |
|---|---|---|---|
| Double DIN | 7"×4" | 180×100 | Double size for modern multimedia systems with large touchscreens |
- Always measure the slot before purchasing a new radio
- Check slot depth - it may vary
Additional Notes
- The 1990 Lexus LS400 utilizes 6.5 inch speaker openings in both front and rear door panels, which may simplify replacement by allowing the same aftermarket units to be installed in all four locations.
- Door panel positions accommodate either midbass drivers or full-range speakers, giving owners flexibility to choose between dedicated component systems or simpler coaxial replacements depending on audio goals.
- An 8 inch subwoofer location exists in the center console area, potentially providing factory low-frequency reinforcement that could be upgraded for enhanced bass response.
- The double DIN radio opening allows for installation of larger aftermarket head units with advanced features, which could serve as the foundation for a more capable audio system when paired with upgraded speakers.
- Replacing door speakers might take priority over the console subwoofer, as these handle the majority of audible frequencies and typically show greater degradation over time in older vehicles.
- Component speaker systems with separate tweeters could offer notable sound quality improvements over factory full-range units in the door locations, particularly in mid and high frequency clarity.
- The center console subwoofer position may present installation challenges for larger aftermarket subwoofers, potentially requiring custom enclosures or alternative mounting locations for significant bass upgrades.
- Matching power handling and sensitivity specifications to the factory or aftermarket amplifier becomes relevant when selecting replacement speakers to avoid underpowering or distortion issues.