2011 BMW 550i GT Speaker Sizes
The 2011 BMW 550i GT speaker size chart provides factory specifications for all audio system locations. Information includes speaker sizes and positions within the vehicle, covering c-pillar, center dash, front door panel, rear door panel, and below seats. Data assists with replacement or aftermarket upgrade planning for the factory audio system.
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| Location | Size | Type | Notes |
|---|---|---|---|
| Below Seats | 8 | Subwoofer |
|
| C-Pillar | 1 | Tweeter |
|
| C-Pillar | 4 | Midrange |
|
| Center Dash | 1 | Tweeter |
|
| Center Dash | 4 | Midrange |
|
| Front Door Panel | 1 | Tweeter |
|
| Front Door Panel | 4 | Midrange |
|
| Rear Door Panel | 1 | Tweeter |
|
| Rear Door Panel | 4 | Midrange |
|
2011 BMW 550i GT Speaker Replacement Summary
9
total positions
4
easy to replace
2
high priority
2
professional only
Replacement difficulty:
Low: 4 Medium: 3 High: 2Replacement priority:
High: 2 Medium: 5 Low: 22011 BMW 550i GT 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 550i GT utilizes a multi-component speaker system with dedicated tweeters, midrange drivers, and subwoofers distributed across multiple locations throughout the cabin.
- Each tweeter location accepts 1 inch units, with identical sizing across the C-pillar, center dash, front door panel, and rear door panel positions.
- Midrange drivers are positioned in the same four locations as the tweeters, with all midrange positions accommodating 4 inch speakers.
- The subwoofer location beneath the seats accepts 8 inch drivers, providing low-frequency reinforcement separate from the tweeter and midrange locations.
- This configuration suggests a factory component system design where high frequencies, midrange frequencies, and bass are handled by separate specialized drivers rather than full-range coaxial speakers.
- Replacing the tweeters might offer noticeable improvements in high-frequency clarity and detail, particularly since smaller drivers tend to degrade faster than larger components.
- The 4 inch midrange speakers handle critical vocal and instrumental frequencies, making their replacement potentially significant for overall sound quality enhancement.
- Upgrading the 8 inch subwoofer could increase bass output and depth, though space constraints below the seats may limit aftermarket options.
- The single DIN radio opening provides a standard mounting size for aftermarket head unit installations, though integration with factory amplifiers and digital signal processing may require additional adapters.
- Component speaker replacements would need to match the specific impedance and power handling characteristics of the factory amplification system to function properly.