1987 BMW M6 Speaker Sizes

The 1987 BMW M6 speaker size chart provides factory specifications for OEM audio system locations. Information includes replacement and aftermarket upgrade options for dashboard and rear deck lid positions. Data covers factory speaker configurations and compatible aftermarket specifications to assist with audio system modifications. Reference details support installation planning for upgraded components in original equipment locations.

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Speaker Details by Location
Location Size Type Notes
Dashboard 4 Midrange
  • Requires panel disassembly
  • Medium replacement priority
  • Replacement difficulty: medium
Rear Deck Lid 6.5 Midbass / Full-Range
  • Access through trunk
  • Medium replacement priority
  • Replacement difficulty: low

1987 BMW M6 Speaker Replacement Summary

2 total positions
1 easy to replace
0 high priority
0 professional only

Replacement difficulty:

Low: 1 Medium: 1 High: 0

Replacement priority:

High: 0 Medium: 2 Low: 0

1987 BMW M6 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 factory audio configuration in the 1987 BMW M6 positions midrange speakers at 4 inches in the dashboard locations, which suggests these handle the critical mid-frequency reproduction that affects vocal clarity and instrument definition in the listening experience.
  • Rear deck lid locations accommodate 6.5-inch speakers rated for either midbass or full-range operation, indicating these positions likely serve as the primary low-frequency source in the original sound system architecture.
  • Replacing the dashboard speakers with aftermarket 4-inch midrange units could enhance the tonal balance of the front soundstage, particularly for frequencies where human hearing is most sensitive.
  • The 6.5-inch rear deck speakers in the 1987 BMW M6 might benefit from full-range replacements if maintaining a simpler two-way configuration, though dedicated midbass drivers could provide better low-end extension when paired with separate tweeters.
  • Component speaker systems would require additional tweeter mounting solutions since the factory specifications don't indicate dedicated high-frequency driver locations in the dashboard or door panels.
  • The single DIN radio specification suggests the head unit can be upgraded to modern aftermarket receivers that provide enhanced power output and signal processing to drive replacement speakers more effectively.
  • Sound quality improvements would likely be most noticeable when addressing the rear deck positions first, given the larger cone area of 6.5-inch drivers compared to the 4-inch dashboard units.
  • Aftermarket speakers for these applications typically feature higher sensitivity ratings and power handling than original equipment, which could translate to increased output levels without requiring external amplification.