2018 Ford Focus Speaker Sizes
The 2018 Ford Focus speaker size chart provides factory specifications for audio components across multiple locations. Information includes replacement speaker sizes for front door panel, rear door panel, center dash, and rear side panel positions. Details support aftermarket upgrade planning by identifying factory system configurations and available installation locations throughout the vehicle.
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| Location | Size | Type | Notes |
|---|---|---|---|
| Center Dash | 3.5 | Full-Range |
|
| Front Door Panel | 1 | Tweeter |
|
| Front Door Panel | 6.5 | Midbass / Full-Range |
|
| Rear Door Panel | 1 | Tweeter |
|
| Rear Door Panel | 6.5 | Midbass / Full-Range |
|
| Rear Side Panel | 8 | Woofer |
|
2018 Ford Focus Speaker Replacement Summary
6
total positions
4
easy to replace
2
high priority
0
professional only
Replacement difficulty:
Low: 4 Medium: 2 High: 0Replacement priority:
High: 2 Medium: 3 Low: 12018 Ford Focus 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 2018 Ford Focus contains a layered speaker configuration with dedicated tweeters, mid-range drivers, and a rear woofer component positioned across multiple locations throughout the cabin.
- Both front and rear door panels incorporate 1-inch tweeters for high-frequency reproduction, suggesting a factory attempt at extended treble response beyond what the larger drivers can naturally produce.
- The 6.5-inch openings in all four door panels accept either midbass or full-range speakers, allowing replacement options based on whether the existing tweeter network will be retained or bypassed.
- A center dash location houses a 3.5-inch full-range speaker, likely positioned for vocal clarity and stereo imaging enhancement in the driver's forward sound field.
- An 8-inch woofer location exists in the rear side panel area, presumably intended for low-frequency reinforcement that the door-mounted 6.5-inch drivers may lack.
- Upgrading the 6.5-inch door speakers would probably yield the most noticeable improvement in overall sound quality, as these locations typically handle the majority of the frequency spectrum in most factory audio systems.
- The dual radio compatibility (Single DIN and Double DIN) indicates the dash opening can accommodate either a standard height or taller aftermarket head unit with additional display or control features.
- Replacing the 1-inch tweeters could refine high-frequency detail and reduce harshness that sometimes characterizes factory silk or paper dome designs.
- The 8-inch rear woofer presents an opportunity for bass enhancement without requiring subwoofer enclosure installation, though its effectiveness depends heavily on the mounting location's acoustic properties.
- Full-range replacement speakers in the 6.5-inch positions might eliminate the need for the separate tweeters if the aftermarket units feature integrated high-frequency drivers with adequate dispersion characteristics.