2013 BMW Alpina B7 Speaker Sizes

The 2013 BMW Alpina B7 speaker size chart lists factory speaker locations and specifications for replacement or aftermarket upgrade purposes. Available information includes speaker locations in the center dash, front door panel, rear deck lid, rear door panel, and below seats. The chart provides specifications to assist with audio system component replacement in this vehicle.

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Speaker Details by Location
Location	Size	Type	Notes
Below Seats	8	Subwoofer	Very limited height clearance Medium replacement priority Replacement difficulty: medium
Center Dash	1	Tweeter	Requires dashboard disassembly Medium replacement priority Replacement difficulty: medium
Center Dash	4	Midrange	Requires dashboard disassembly Medium replacement priority Replacement difficulty: medium
Front Door Panel	1	Tweeter	Standard installation High replacement priority Replacement difficulty: low
Front Door Panel	4	Midrange	Standard installation High replacement priority Replacement difficulty: low
Rear Deck Lid	1	Tweeter	Access through trunk Medium replacement priority Replacement difficulty: low
Rear Deck Lid	4	Midrange	Access through trunk Medium replacement priority Replacement difficulty: low
Rear Door Panel	1	Tweeter	Standard installation Medium replacement priority Replacement difficulty: low
Rear Door Panel	4	Midrange	Standard installation Medium replacement priority Replacement difficulty: low

2013 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: 0

Replacement priority:

High: 2 Medium: 7 Low: 0

Additional Notes

The 2013 BMW Alpina B7 features a distributed speaker system with tweeters positioned across multiple locations including the center dash, front door panels, rear deck lid, and rear door panels, all measuring 1 inch in size.
Midrange speakers at 4 inches are installed in matching locations to the tweeters, creating a layered audio configuration throughout the cabin with dedicated frequency-specific drivers in the center dash, door panels, and rear deck areas.
An 8 inch subwoofer located below the seats handles low-frequency reproduction, complementing the smaller midrange and tweeter components distributed elsewhere in the vehicle.
The factory audio system in the 2013 BMW Alpina B7 relies on component-style separation, with distinct tweeter and midrange speakers working together rather than using full-range coaxial units.
Replacement or upgrading of the 1 inch tweeters could potentially enhance high-frequency clarity and detail, though compatibility with the existing crossover network would need consideration.
The 4 inch midrange speakers handle the critical vocal and instrumental frequency ranges, and their performance likely influences overall tonal balance and midrange warmth in the listening experience.
Subwoofer upgrades might be limited by the below-seat mounting location, as physical clearance and enclosure volume constraints could affect the selection of aftermarket 8 inch options.
The consistent size specifications across multiple locations suggest a factory design that prioritizes tonal matching and balanced sound staging throughout the front and rear seating areas.