1999 Lexus GS300 Speaker Sizes
The 1999 Lexus GS300 speaker size chart provides factory specifications and locations for audio system components. Information covers replacement speakers in front door panel, rear door panel, and rear deck lid locations. Data assists with aftermarket upgrade planning by detailing OEM speaker configurations throughout the vehicle audio system.
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| Location | Size | Type | Notes |
|---|---|---|---|
| Front Door Panel | 6.5 | Midbass / Full-Range |
|
| Rear Deck Lid | 10 | Subwoofer |
|
| Rear Door Panel | 6.5 | Midbass / Full-Range |
|
1999 Lexus GS300 Speaker Replacement Summary
3
total positions
3
easy to replace
1
high priority
0
professional only
Replacement difficulty:
Low: 3 Medium: 0 High: 0Replacement priority:
High: 1 Medium: 2 Low: 01999 Lexus GS300 Radio Slot Size (DIN)
| DIN Type | Size (inch) | Size (mm) | Notes |
|---|---|---|---|
| Single DIN or Double DIN | 7"×2" or 7"×4" | 180×50 or 180×100 | Vehicle supports both radio sizes |
- Always measure the slot before purchasing a new radio
- Check slot depth - it may vary
Additional Notes
- The front and rear door panels in the 1999 Lexus GS300 share the same 6.5 inch speaker opening, which may simplify the replacement process when upgrading multiple locations with matching components.
- The rear deck lid accepts a 10 inch subwoofer, providing a factory-integrated location for low-frequency reproduction without requiring custom enclosure fabrication.
- Door panel speakers can accommodate either midbass or full-range drivers, allowing flexibility in system design based on whether separate tweeters will be incorporated into the installation.
- The 1999 Lexus GS300 radio supports both single DIN and double DIN head units, which could influence speaker upgrade decisions if simultaneous radio replacement is being considered.
- Midbass drivers in the door locations would typically handle frequencies from approximately 80 Hz to 500 Hz, while full-range speakers would extend response into higher frequencies for vocal and treble reproduction.
- The rear deck subwoofer position may benefit from the natural acoustic coupling with the trunk cavity, potentially enhancing bass output compared to other mounting locations.
- Aftermarket 6.5 inch speakers often provide higher power handling and sensitivity ratings than factory components, which could result in increased volume capability and dynamic range when properly matched with amplification.