Ford Flex Rear Door Panel Speaker Size
The Ford Flex rear door panel accommodates a 1 inch speaker size and supports 6x8 inch speakers. Compatible types for these locations include tweeters and full-range units. These specifications cover the 2009 to 2019 model years.
| Year | Type | Size (inch) |
|---|---|---|
| 2019 | Tweeter | 1 |
| 2019 | Full-Range | 6x8 |
| 2018 | Tweeter | 1 |
| 2018 | Full-Range | 6x8 |
| 2017 | Tweeter | 1 |
| 2017 | Full-Range | 6x8 |
| 2016 | Tweeter | 1 |
| 2016 | Full-Range | 6x8 |
| 2015 | Tweeter | 1 |
| 2015 | Full-Range | 6x8 |
| 2014 | Tweeter | 1 |
| 2014 | Full-Range | 6x8 |
| 2013 | Tweeter | 1 |
| 2013 | Full-Range | 6x8 |
| 2012 | Tweeter | 1 |
| 2012 | Full-Range | 6x8 |
| 2011 | Tweeter | 1 |
| 2011 | Full-Range | 6x8 |
| 2010 | Tweeter | 1 |
| 2010 | Full-Range | 6x8 |
| 2009 | Tweeter | 1 |
| 2009 | Full-Range | 6x8 |
Speaker Types
| Type | Description |
|---|---|
| Tweeter | A small driver built for high frequencies, typically from about 2,000 Hz to 20,000 Hz. It adds treble detail and clarity and is usually mounted near ear level or aimed at the listener. |
| Full-Range | A single driver that reproduces bass through treble without a separate crossover network. It is the simplest replacement option and is common in factory audio systems. |
Additional Notes
- The Ford Flex rear door panel accommodates 2 distinct speaker sizes simultaneously, a 1 inch tweeter and a 6x8 inch full-range driver, indicating a multi-driver mounting configuration within the panel structure.
- Rear door panels in vehicles of the Flex's class are typically recessed into the inner door skin, meaning speaker depth clearance and baffle geometry are constrained by the door's internal cavity and window mechanism hardware.
- The 6x8 inch format is an oval speaker shape, with the longer 8 inch axis extending horizontally or vertically within the door panel cutout, allowing a larger cone surface area than a circular 6 inch driver would permit in the same vertical space.
- A larger cone surface area in the 6x8 inch full-range driver allows greater air displacement at lower frequencies, making the rear door panel a contributor to mid-bass reproduction within the cabin.
- Full-range drivers in a rear door panel location handle frequencies spanning from the lower midrange through the upper midrange, covering the broad middle portion of the audible spectrum without relying on a crossover network.
- The Ford Flex rear door panel's 1 inch tweeter operates at high frequencies, typically above 2,000 Hz, where wavelengths are short enough that a small diaphragm can reproduce them with adequate directional control.
- A 1 inch tweeter mounted in the rear door panel positions high-frequency output at a relatively low height within the cabin, which affects the vertical angle of high-frequency dispersion toward rear-seat occupants.
- The pairing of a 1 inch tweeter alongside a 6x8 inch full-range driver in the same rear door panel implies a system where the tweeter supplements the upper frequency reproduction that a full-range driver of that size may not deliver with optimal dispersion.
- The 6x8 inch full-range driver's oval geometry results in different horizontal and vertical dispersion patterns compared to a circular driver, as the two axes produce sound at different angular spreads across the listening space.
- Rear door panel speaker locations direct acoustic output toward the interior of the passenger compartment rather than toward exterior surfaces, with door panel trim, armrest structures, and fabric grilles affecting the final frequency response heard by occupants.