2007 BMW Alpina B7 Speaker Sizes
Information about factory and aftermarket audio specifications for the 2007 BMW Alpina B7. The speaker size chart includes details on replacement and upgrade options for speakers located in the front door panel, rear door panel, center dash, rear deck lid, and below seats. Factory system locations and aftermarket audio specifications are provided to assist with audio system modifications.
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| Location | Size | Type | Notes |
|---|---|---|---|
| Below Seats | 8 | Subwoofer |
|
| Center Dash | 4 | Midrange |
|
| Front Door Panel | 0.75 | Tweeter |
|
| Front Door Panel | 4 | Midrange |
|
| Rear Deck Lid | 0.75 | Tweeter |
|
| Rear Deck Lid | 4 | Midrange |
|
| Rear Door Panel | 4 | Midrange |
|
2007 BMW Alpina B7 Speaker Replacement Summary
7
total positions
5
easy to replace
2
high priority
0
professional only
Replacement difficulty:
Low: 5 Medium: 2 High: 0Replacement priority:
High: 2 Medium: 5 Low: 0Additional Notes
- The 2007 BMW Alpina B7 audio system incorporates a multi-driver configuration that separates frequencies across dedicated speaker types, with tweeters handling high frequencies, midrange units managing vocal and instrumental ranges, and a subwoofer reproducing bass content.
- Replacement speakers would need to match the factory size specifications, as the tweeter locations accept 0.75-inch components while midrange positions accommodate 4-inch drivers and the subwoofer location houses an 8-inch unit.
- The tweeter placements in both front door panels and rear deck lid suggest the factory system may prioritize high-frequency dispersion throughout the cabin space.
- Midrange speakers appear distributed across multiple locations including the center dash, front door panels, rear deck lid, and rear door panels, potentially creating a surround-type listening environment.
- The 8-inch subwoofer positioned below the seats could provide bass reinforcement while maintaining cargo space and cabin volume.
- Aftermarket component speakers with separate tweeters and midrange drivers might integrate into the existing locations without requiring substantial modifications to the 2007 BMW Alpina B7 interior.
- Sound improvement efforts would likely focus on the midrange frequencies given the prevalence of 4-inch driver locations throughout the vehicle.
- The tweeter size of 0.75 inch represents a relatively compact dimension, which may limit the selection of direct-fit replacement options compared to more common automotive tweeter sizes.