1998 Lexus GS300 Speaker Sizes
The 1998 Lexus GS300 factory audio system features specific location parameters where the front door panel and rear door panel accommodate 6.5 inch speakers, while the rear deck lid accommodates a 10 inch speaker size. Compatible speaker types for a system replacement and upgrade consist of subwoofer, midbass, and full-range units.
Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.
| 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 |
|
1998 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: 01998 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 1998 Lexus GS300 positions subwoofers in the rear deck lid location, which typically allows for dedicated low-frequency reproduction separate from the door-mounted speakers.
- Both front and rear door panels accept 6.5 inch speakers that can function as either midbass drivers or full-range units, providing flexibility in system configuration based on whether additional tweeters or crossovers are used.
- Replacing the rear deck speakers with aftermarket subwoofers may produce noticeable bass improvement, as factory-installed units in this location often lack the excursion capability and power handling of dedicated aftermarket options.
- The door panel speakers support midbass drivers, which could provide better midrange clarity when paired with separate tweeters compared to full-range alternatives that attempt to reproduce the entire frequency spectrum from a single cone.
- Single DIN or double DIN head unit compatibility suggests the radio cavity could accommodate modern receivers with expanded features, though this would depend on dash modifications and retention of climate controls if integrated.
- Upgrading door speakers to higher sensitivity ratings may increase overall volume output without requiring amplifier installation, though power handling capacity would still limit maximum clean output levels.