1982 BMW 733i Speaker Sizes

The 1982 BMW 733i speaker size chart provides factory speaker specifications and locations for replacement or upgrade purposes. Information includes aftermarket audio system compatibility for front kick panel and rear deck lid positions. Details cover factory and replacement speaker specifications to assist with audio system modifications.

As an Amazon Associate, we may earn a commission from purchases made through links marked. Read more in our disclaimer.

Speaker Details by Location
Location Size Type Notes
Front Kick Panel 4x6 Full-Range
  • Cramped working position
  • Medium replacement priority
  • Replacement difficulty: medium
Rear Deck Lid 5.25 Midbass / Full-Range
  • Access through trunk
  • Medium replacement priority
  • Replacement difficulty: low

1982 BMW 733i 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

1982 BMW 733i 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 1982 BMW 733i front kick panel locations accommodate 4x6 inch speakers, which are designed as full-range units to handle the entire frequency spectrum from a single driver assembly.
  • Rear deck lid positions accept 5.25 inch round speakers that can function either as midbass drivers focused on lower frequencies or as full-range speakers handling broader audio output.
  • Kick panel speakers typically serve as the primary sound source in this configuration, though their smaller 4x6 form factor may limit low-frequency extension compared to larger drivers.
  • The dual compatibility of rear deck speakers suggests flexibility in system design, allowing either dedicated midbass support for a component setup or standalone full-range operation.
  • Factory speaker replacement might prioritize the front locations due to their direct firing angle toward occupants, though rear fill contribution affects overall cabin balance.
  • Full-range speakers in kick panel applications attempt to reproduce all frequencies but may exhibit compromises in bass depth and treble extension compared to component systems.
  • The 5.25 inch rear speakers offer greater cone area than the front 4x6 units, potentially providing improved bass response when configured as midbass drivers.
  • Single DIN radio compatibility indicates standard head unit replacement options, though this relates to source equipment rather than speaker performance characteristics.