2015 BMW 750i Speaker Sizes
The 2015 BMW 750i factory audio system contains specific speaker locations. Center dash, front door panel, rear deck lid, and rear door panel accommodate 4 inch speakers and 1 inch units, while below seats support an 8 inch speaker size. Compatible speaker types for replacement and upgrade include tweeter, midrange, and subwoofer.
Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.
| 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 |
|
2015 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: 02015 BMW 750i Radio Slot Size (DIN)
| DIN Type | Size (inch) | Size (mm) | Notes |
|---|---|---|---|
| Single DIN | 7"×2" | 180×50 | Standard size for basic car radios with small display or no display |
- Always measure the slot before purchasing a new radio
- Check slot depth - it may vary
Additional Notes
- The 2015 BMW 750i factory audio system utilizes a three-way speaker configuration with dedicated tweeters, midrange drivers, and subwoofers distributed across multiple locations throughout the cabin.
- Tweeters measuring 1 inch are installed in four separate locations: the center dash, front door panels, rear deck lid, and rear door panels, providing high-frequency sound dispersion from multiple points.
- Midrange speakers at 4 inches are positioned in the same four locations as the tweeters, suggesting a component-style setup where different frequency ranges are handled by separate drivers in each zone.
- The below-seat location houses 8-inch subwoofers, which likely provides low-frequency output while conserving trunk space and maintaining a lower profile compared to traditional trunk-mounted subwoofer enclosures.
- Replacing the factory speakers may require component speaker systems rather than coaxial units, given the separate tweeter and midrange driver arrangement in each location.
- The single DIN radio opening indicates a relatively compact head unit space, which may limit options for aftermarket receiver installations compared to double DIN configurations.
- Upgrading the 1-inch tweeters could potentially enhance high-frequency clarity and detail, though the small size may limit the available aftermarket replacement options compared to more common tweeter sizes.
- The 4-inch midrange speakers handle the critical vocal and instrumental frequency range, making them a potentially high-priority target for aftermarket replacement to improve overall tonal balance.
- The symmetrical speaker distribution between front and rear locations suggests the factory system was designed to provide balanced sound coverage for both front and rear passengers.