2017 BMW 740i Speaker Sizes
The 2017 BMW 740i speaker size chart outlines factory audio system specifications across multiple locations. Information includes replacement speaker sizes for center dash, front door panel, rear deck lid, rear door panel, and below seats. Data supports aftermarket upgrade planning by identifying OEM speaker specifications and locations within the vehicle audio system.
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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 |
|
2017 BMW 740i 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 2017 BMW 740i factory audio system incorporates a multi-driver configuration with tweeters, midrange speakers, and subwoofers distributed across nine distinct locations throughout the cabin.
- Tweeters of 1 inch size are positioned in four separate locations: the center dash, both front door panels, both rear door panels, and the rear deck lid, suggesting a focus on high-frequency dispersion across the listening area.
- Midrange drivers of 4 inch size mirror the tweeter locations, appearing in the center dash, front door panels, rear door panels, and rear deck lid, which may indicate a factory component speaker setup rather than traditional coaxial units.
- An 8 inch subwoofer installed below the seats handles low-frequency reproduction, a location that typically provides space-efficient bass reinforcement without compromising cargo or passenger areas.
- Upgrading the midrange drivers could yield noticeable improvements in vocal clarity and instrumental detail, as these 4 inch components handle the critical frequency range where most musical content resides.
- The separate tweeter and midrange arrangement suggests that replacement options should account for component speaker compatibility rather than full-range coaxial alternatives.
- Aftermarket subwoofer upgrades would need to accommodate the below-seat mounting position, which typically limits enclosure volume and may require shallow-mount or under-seat specific designs.
- The multiple tweeter locations throughout the cabin indicate that the factory system prioritizes soundstage width and high-frequency coverage, characteristics that replacement speakers should maintain or enhance.