2015 BMW i3 Speaker Sizes

The 2015 BMW i3 factory audio system contains specific factory speaker layouts. Center dash and front door panel and rear door panel accommodate 1 inch speakers, while front speaker accepts a 6x9 inch speaker size. Additionally, center dash and front door panel and rear door panel accommodate 4 inch speakers. Compatible replacement and upgrade types include tweeters, midrange units, and full-range units.

Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.

Speaker Details by Location
Location Size Type Notes
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 6x9 Full-Range
  • Main speakers location
  • High 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 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

2015 BMW i3 Speaker Replacement Summary

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

Replacement difficulty:

Low: 4 Medium: 3 High: 0

Replacement priority:

High: 3 Medium: 4 Low: 0

Additional Notes

  • The 2015 BMW i3 audio system incorporates a distributed speaker configuration with dedicated tweeters, midrange drivers, and full-range speakers positioned throughout the cabin to create a multi-way sound stage.
  • Tweeters handle high-frequency reproduction and are located in three positions: the center dash, front door panels, and rear door panels, all utilizing 1-inch mounting sizes.
  • Midrange drivers complement the tweeters by reproducing mid-frequency content and are installed alongside them in matching locations with 4-inch specifications for the center dash, front doors, and rear doors.
  • The front positioning includes 6x9-inch full-range speakers that may serve as the primary low-frequency source or provide broader frequency coverage compared to the separated tweeter and midrange components.
  • Replacement planning might prioritize the front 6x9-inch speakers and front door components, as these locations typically contribute most significantly to the listening experience for front-seat occupants.
  • The tweeter and midrange pairing in each location suggests the factory system was designed with frequency separation in mind, which aftermarket upgrades could potentially enhance through higher-quality drivers with better transient response and lower distortion.
  • Full-range speakers offer a simpler replacement path since they integrate multiple frequency ranges into a single driver, though they may not achieve the same level of separation as dedicated component configurations.
  • Sound quality improvements from speaker replacement would likely be most noticeable in clarity and detail retrieval, particularly if the factory drivers have deteriorated or if higher-sensitivity aftermarket options are selected.
  • The compact 1-inch and 4-inch sizes in the dash and door panel locations may limit power handling capacity, making efficiency and sensitivity ratings important considerations when selecting replacement drivers.