2015 BMW Alpina B7 Speaker Sizes
The 2015 BMW Alpina B7 factory audio system integrates center dash, front door panel, rear deck lid, and rear door panel locations that accommodate 1 inch speakers and 4 inch speakers, alongside below seats locations that support an 8 inch speaker size. Compatible speaker types for system replacement and upgrade consist of tweeters, midrange drivers, and subwoofers.
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 Alpina B7 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 2015 BMW Alpina B7 features a multi-component speaker system with dedicated frequency-specific drivers distributed throughout the cabin, suggesting a factory audio configuration designed for broad frequency response.
- Tweeters measuring 1 inch are positioned in four distinct locations including the center dash, front door panels, rear deck lid, and rear door panels, which may provide high-frequency dispersion across the listening environment.
- Midrange drivers at 4 inches occupy the same four locations as the tweeters, indicating a possible component speaker arrangement where frequency ranges are separated rather than handled by full-range coaxial units.
- The presence of an 8 inch subwoofer below the seats suggests factory attention to low-frequency reproduction, though this location may limit bass output compared to larger enclosures typically found in trunk-mounted configurations.
- Replacing the tweeters and midrange speakers with aftermarket components of matching sizes could alter tonal balance and soundstage characteristics, particularly if sensitivity ratings differ from factory specifications.
- The subwoofer position beneath the seats may constrain replacement options due to spatial limitations and mounting considerations specific to under-seat installations.
- Component speaker systems like this configuration typically allow for more precise sound tuning compared to coaxial designs, as each driver handles a narrower frequency band.