2014 BMW 550i GT Speaker Sizes
The 2014 BMW 550i GT factory audio system includes specific locations configured for 1 inch units, where the center dash, front door panel, rear door panel, and c-pillar accommodate 1 inch speakers. Furthermore, the center dash, front door panel, rear door panel, and c-pillar accept 4 inch speakers, while the below seats area contains an 8 inch speaker size. Compatible speaker types for a replacement upgrade project include tweeter, midrange, and subwoofer units.
Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.
| 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 |
|
2014 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: 22014 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 2014 BMW 550i GT features a factory audio system with dedicated speaker locations organized by frequency range, separating tweeters, midrange drivers, and subwoofers into distinct mounting positions throughout the cabin.
- Tweeters measuring 1 inch are installed across multiple locations including the C-pillar, center dash, front door panels, and rear door panels, suggesting a multi-point high-frequency distribution design.
- Midrange speakers at 4 inches occupy the same general locations as the tweeters (C-pillar, center dash, front door panels, and rear door panels), indicating a component speaker configuration rather than coaxial units.
- The separation of tweeters and midrange drivers into distinct sizes and locations reflects a component speaker architecture that may allow for targeted upgrades based on desired frequency response improvements.
- An 8-inch subwoofer positioned below the seats handles low-frequency reproduction, a mounting location that may provide space-efficient bass reinforcement while preserving cargo area.
- Replacing the factory 4-inch midrange speakers could potentially yield noticeable improvements in vocal clarity and mid-frequency detail, as this size typically handles much of the audible spectrum in automotive audio systems.
- The 1-inch tweeter locations spread throughout the cabin suggest that high-frequency staging and imaging characteristics might be altered through aftermarket tweeter upgrades with different dispersion patterns.
- Upgrading the under-seat subwoofer to an aftermarket 8-inch unit with higher power handling and lower frequency extension could enhance bass output without requiring modifications to the mounting location.
- The single DIN radio opening provides standard compatibility with many aftermarket head units, though integration with factory systems may require additional adapters or interfaces.
- Component speaker upgrades targeting the 4-inch midrange positions might offer more substantial sonic improvements than tweeter replacement alone, given the broader frequency range these drivers typically reproduce.