2018 Ford Flex Speaker Sizes
The 2018 Ford Flex speaker size chart provides factory audio system specifications for all speaker locations. Information covers replacement and upgrade options for speakers in the a-pillar, center dash, d-pillar, front door panel, rear door panel, and rear side panel positions. Details include factory speaker specifications to assist with aftermarket audio system component installation.
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| Location | Size | Type | Notes |
|---|---|---|---|
| A-Pillar | 1 | Tweeter |
|
| Center Dash | 3.5 | Full-Range |
|
| D-Pillar | 3.5 | Midrange |
|
| Front Door Panel | 6x8 | Full-Range |
|
| Rear Door Panel | 6x8 | Full-Range |
|
| Rear Side Panel | 8 | Woofer |
|
2018 Ford Flex Speaker Replacement Summary
6
total positions
2
easy to replace
1
high priority
2
professional only
Replacement difficulty:
Low: 2 Medium: 2 High: 2Replacement priority:
High: 1 Medium: 2 Low: 3Additional Notes
- The 2018 Ford Flex factory audio system separates frequencies across multiple locations, with 1-inch tweeters in the A-pillars handling high frequencies, while larger drivers manage mid and low ranges throughout the cabin.
- Front and rear door panels both utilize 6x8-inch full-range speakers, suggesting a parallel approach to sound staging between front and rear seating areas rather than a front-biased configuration.
- The D-pillar location houses 3.5-inch midrange drivers rather than full-range units, indicating these may be dedicated to specific frequency bands in a more complex factory sound system design.
- An 8-inch woofer in the rear side panel position likely provides bass reinforcement, though its single-location specification suggests mono bass reproduction rather than stereo subwoofer implementation.
- The center dash 3.5-inch full-range speaker may serve as a center channel in certain audio configurations or provide supplemental fill for the soundstage across the width of the dashboard.
- Aftermarket upgrades to the front door 6x8-inch positions would potentially yield the most noticeable improvement in overall sound quality, given their role as primary full-range drivers and typical proximity to front seat occupants.
- The specialized tweeter and midrange placements in the pillars suggest that replacing these components might require attention to crossover frequencies and power handling to maintain proper integration with remaining factory speakers.