2016 BMW 640i Speaker Sizes
The speaker size chart for the 2016 BMW 640i provides factory specifications and locations for replacement or aftermarket audio components. Information covers speaker positions in the center dash, front door panel, rear deck lid, rear side panel, and below seats. Details support upgrade decisions for the factory audio system with compatible aftermarket speakers.
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| Location | Size | Type | Notes |
|---|---|---|---|
| Below Seats | 8 | Subwoofer |
|
| Center Dash | 4 | Midrange |
|
| Center Dash | 1 | Tweeter |
|
| Front Door Panel | 1 | Tweeter |
|
| Front Door Panel | 4 | Midrange |
|
| Rear Deck Lid | 1 | Tweeter |
|
| Rear Deck Lid | 4 | Midrange |
|
| Rear Side Panel | 1 | Tweeter |
|
| Rear Side Panel | 4 | Midrange |
|
2016 BMW 640i Speaker Replacement Summary
9
total positions
4
easy to replace
2
high priority
0
professional only
Replacement difficulty:
Low: 4 Medium: 5 High: 0Replacement priority:
High: 2 Medium: 5 Low: 2Additional Notes
- The 2016 BMW 640i features a multi-driver speaker system with dedicated tweeters, midrange drivers, and a subwoofer positioned across multiple locations throughout the cabin.
- Tweeters measuring 1 inch are installed in four distinct locations: the center dash, front door panels, rear deck lid, and rear side panels, suggesting a focus on high-frequency distribution.
- Midrange drivers at 4 inches occupy the same four locations as the tweeters, indicating a component-style setup where frequencies are separated between dedicated drivers rather than using full-range coaxial speakers.
- The subwoofer position below the seats at 8 inches may offer bass reinforcement without consuming significant trunk space, though this location could present challenges for accessing and replacing the driver.
- Upgrading the midrange drivers might provide noticeable improvements in vocal clarity and instrument definition, as these 4-inch components handle the critical middle frequencies where most musical content resides.
- The tweeter network with four separate 1-inch units could benefit from replacements that offer smoother response and better power handling, particularly if the factory units exhibit harshness at higher volumes.
- Component speaker upgrades would require matching the specific sizes at each location, with consideration for mounting depth and impedance compatibility with the factory amplifier if one is present.
- The under-seat subwoofer configuration at 8 inches might limit output compared to larger drivers, making this a potential priority for replacement if increased bass extension and impact are desired.