2014 BMW 740i Speaker Sizes
The factory audio system for the 2014 BMW 740i features specific speaker locations. Center dash, front door panel, rear deck lid, and rear door panel accommodate 4 inch speakers and a 1 inch speaker size, while below seats support 8 inch units. Available replacement and upgrade types consist of tweeters, midrange drivers, 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 |
|
2014 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: 02014 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 2014 BMW 740i audio system utilizes a three-way speaker configuration with dedicated tweeters, midrange drivers, and subwoofers positioned throughout the cabin.
- Tweeters measuring 1 inch are installed in multiple locations including the center dash, front door panels, rear deck lid, and rear door panels to handle high-frequency reproduction.
- Midrange drivers at 4 inches occupy the same general locations as the tweeters, creating a distributed sound field across the center dash, door panels, and rear deck lid.
- A single 8-inch subwoofer positioned below the seats provides low-frequency reinforcement for the audio system.
- The distributed speaker layout with tweeters and midrange drivers in both front and rear locations may facilitate balanced sound staging across multiple seating positions.
- Replacing the factory tweeters could potentially affect high-frequency clarity and detail, particularly for frequencies above the midrange crossover point.
- The 4-inch midrange speakers handle the critical vocal and instrumental range, making them candidates for upgrades targeting tonal accuracy and presence.
- Aftermarket component speakers designed for three-way systems might integrate with the existing tweeter and midrange locations, though crossover compatibility would need consideration.
- The under-seat subwoofer location at 8 inches offers space-efficient bass output, though replacement options may be limited by the mounting position and enclosure volume.
- The single DIN radio opening allows for standard aftermarket head unit installation without requiring dash modification or adapter kits for double DIN units.