2012 BMW 740i Speaker Sizes
The 2012 BMW 740i factory audio system features specific locations designed to accommodate various audio components. Center dash, front door panel, rear deck lid, and rear door panel locations accept a 4 inch speaker size alongside 1 inch units, while below seats locations accommodate 8 inch units. Available replacement and upgrade speaker types include tweeters, midrange units, and subwoofers.
Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.
| 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 |
|
2012 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: 02012 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 2012 BMW 740i utilizes a multi-driver speaker system with dedicated tweeters, midrange drivers, and a subwoofer positioned across various locations throughout the cabin.
- Tweeters at 1 inch are installed in four separate locations: center dash, front door panels, rear deck lid, and rear door panels, suggesting a focus on high-frequency dispersion throughout the interior.
- Midrange drivers at 4 inches occupy the same four locations as the tweeters, indicating a component-style speaker configuration rather than full-range coaxial units.
- The subwoofer configuration consists of an 8-inch driver positioned below the seats, which may provide bass reinforcement while conserving trunk space.
- Replacement priorities might focus on the midrange drivers and tweeters in the front door panels, as these locations typically contribute most directly to the listening position.
- The component speaker arrangement with separate tweeters and midrange drivers allows for potential upgrades that maintain frequency-specific driver placement.
- Aftermarket component speaker systems with 1-inch tweeters and 4-inch midrange drivers could integrate into the existing mounting locations without requiring extensive modification.
- Sound improvement potential exists through upgrading the 4-inch midrange drivers, which handle vocal and instrumental frequencies in the critical midband spectrum.
- The single DIN radio opening provides standard aftermarket head unit compatibility for source upgrade options.
- Tweeter replacement with higher-quality 1-inch units could enhance treble clarity and imaging, particularly when paired with upgraded midrange drivers.