2012 BMW Alpina B7 Speaker Sizes

The 2012 BMW Alpina B7 speaker size chart lists factory audio system specifications for replacement or aftermarket upgrade purposes. Information covers speaker locations including center dash, front door panel, rear deck lid, and below seats. Data provides details on stock audio components to assist with identifying compatible aftermarket options for system enhancement.

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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

2012 BMW Alpina B7 Speaker Replacement Summary

7 total positions
4 easy to replace
2 high priority
0 professional only

Replacement difficulty:

Low: 4 Medium: 3 High: 0

Replacement priority:

High: 2 Medium: 5 Low: 0

Additional Notes

  • The 2012 BMW Alpina B7 features a multi-component speaker system with dedicated tweeters, midrange drivers, and subwoofers distributed across various locations throughout the cabin.
  • The factory audio configuration includes 1-inch tweeters positioned in three distinct locations: the center dash, front door panels, and rear deck lid, suggesting a design approach focused on high-frequency dispersion.
  • Midrange reproduction is handled by 4-inch drivers installed in the same three locations as the tweeters, indicating a component-style setup rather than coaxial speakers in these positions.
  • Bass reinforcement comes from 8-inch subwoofers mounted below the seats, which may offer space-efficient low-frequency output without sacrificing trunk or cabin storage areas.
  • Replacement speakers would need to match the specific size categories, with aftermarket component sets potentially offering improved frequency response and power handling over factory units in the tweeter and midrange positions.
  • The separation of tweeters and midrange drivers into distinct components could allow for selective upgrades, where owners might replace only the midrange speakers or tweeters depending on which frequency range needs improvement.
  • The under-seat subwoofer location suggests that replacement options would be limited to compact or shallow-mount designs that fit within the available clearance beneath the seating position.
  • Sound staging characteristics might benefit from the front door panel tweeter and midrange placement, as this configuration typically provides better imaging than dash-only speaker positions.