2018 BMW 750i Speaker Sizes
The 2018 BMW 750i speaker size chart provides factory specifications for replacement or aftermarket upgrade purposes. Information covers speaker locations throughout the audio system, including center dash, front door panel, rear deck lid, rear door panel, and below seats. Details enable identification of compatible speakers for maintaining or enhancing the factory audio system with aftermarket components.
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| Location | Size | Type | Notes |
|---|---|---|---|
| Below Seats | 8 | Subwoofer |
|
| Center Dash | 1 | Tweeter |
|
| Center Dash | 4 | Midrange |
|
| Front Door Panel | 1 | Tweeter |
|
| Front Door Panel | 4 | Midrange |
|
| Rear Deck Lid | 1 | Tweeter |
|
| Rear Deck Lid | 4 | Midrange |
|
| Rear Door Panel | 1 | Tweeter |
|
| Rear Door Panel | 4 | Midrange |
|
2018 BMW 750i Speaker Replacement Summary
9
total positions
6
easy to replace
2
high priority
0
professional only
Replacement difficulty:
Low: 6 Medium: 3 High: 0Replacement priority:
High: 2 Medium: 7 Low: 0Additional Notes
- The 2018 BMW 750i audio system utilizes a component speaker configuration with dedicated tweeters, midrange drivers, and subwoofers distributed across multiple locations throughout the cabin.
- Tweeters measuring 1 inch are installed in four distinct positions: the center dash, both front door panels, rear deck lid, and rear door panels, suggesting a focus on high-frequency dispersion.
- Midrange drivers at 4 inches occupy the same four locations as the tweeters, indicating a component system design where frequency ranges are separated rather than combined in coaxial speakers.
- An 8-inch subwoofer positioned below the seats handles low-frequency reproduction, which may provide bass response without consuming trunk space.
- Replacement of the midrange speakers could potentially yield noticeable improvements in vocal clarity and instrumental detail, as these drivers handle the most prominent audible frequencies.
- The tweeter locations in both front and rear doors, combined with center dash and rear deck positions, suggest an attempt at creating a balanced soundstage for all seating positions.
- Component speaker replacements would require matching 1-inch tweeters and 4-inch midrange units, along with appropriate crossovers to maintain proper frequency division between drivers.
- The under-seat subwoofer location may present access challenges during replacement but offers acoustic benefits by coupling with the seat structure for enhanced low-frequency output.