2011 BMW 740i Speaker Sizes
The 2011 BMW 740i speaker size chart provides factory specifications for audio system components across multiple locations. Information includes replacement sizes for front door panel speakers, rear door panel speakers, center dash speakers, rear deck lid speakers, and below-seat speakers. Aftermarket upgrade specifications enable selection of compatible replacement components for the factory audio system.
As an Amazon Associate, we may earn a commission from purchases made through links marked. Read more in our disclaimer.
| Location | Size | Type | Notes |
|---|---|---|---|
| Below Seats | 8 | Subwoofer |
|
| Center Dash | 1 | Tweeter |
|
| Center Dash | 4 | Midrange |
|
| Front Door Panel | 1 | Tweeter |
|
| Front Door Panel | 4 | Midrange |
|
| Rear Deck Lid | 1 | Tweeter |
|
| Rear Deck Lid | 4 | Midrange |
|
| Rear Door Panel | 1 | Tweeter |
|
| Rear Door Panel | 4 | Midrange |
|
2011 BMW 740i Speaker Replacement Summary
9
total positions
6
easy to replace
2
high priority
0
professional only
Replacement difficulty:
Low: 6 Medium: 3 High: 0Replacement priority:
High: 2 Medium: 7 Low: 02011 BMW 740i 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 2011 BMW 740i utilizes a component speaker configuration with separate tweeters and midrange drivers distributed across multiple locations, which may provide enhanced sound staging compared to coaxial designs.
- Tweeters measuring 1 inch are installed in four locations: center dash, front door panels, rear deck lid, and rear door panels, suggesting a factory audio system designed for broad high-frequency dispersion.
- Midrange drivers at 4 inches occupy corresponding positions to the tweeters, potentially creating a matched frequency response pattern throughout the cabin.
- An 8 inch subwoofer positioned below the seats handles low-frequency reproduction, though this under-seat placement may limit bass output compared to larger enclosures.
- Replacement of the midrange drivers could yield noticeable sound quality improvements, as these handle the critical vocal and instrumental frequency range.
- The factory single DIN radio configuration may constrain aftermarket head unit options compared to double DIN openings found in some vehicles.
- Upgrading the 1 inch tweeters might enhance clarity in the upper frequency spectrum, particularly for cymbal and string instrument reproduction.
- The symmetrical speaker layout between front and rear locations suggests the factory system was engineered to provide consistent audio coverage for all seating positions.
- Aftermarket subwoofer upgrades would need to accommodate the below-seat mounting location and 8 inch size constraint unless alternative installation positions are considered.
- Component speaker replacements would likely require matching sensitivity ratings to maintain proper balance between the tweeter and midrange elements without external crossover modifications.