2014 BMW 328d Speaker Sizes
The 2014 BMW 328d speaker size chart provides factory specifications for audio system locations throughout the vehicle. Information includes speaker locations in the center dash, front door panel, rear deck lid, rear door panel, and below seats. Data assists with replacement or aftermarket upgrade planning by identifying factory speaker configurations and specifications at each position within the audio system.
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| 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 328d 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 328d 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 328d utilizes a specialized speaker configuration with distinct frequency-specific drivers distributed across multiple cabin locations, suggesting a factory system designed around frequency separation rather than full-range coaxial speakers.
- Each primary location in the vehicle contains both a 1-inch tweeter and a 4-inch midrange driver, indicating a component speaker approach where high and mid-range frequencies are handled by separate dedicated units.
- The center dash houses both tweeter and midrange components, which may serve to anchor the sound stage and provide directional audio cues for the driver and front passenger.
- Front door panels incorporate matching tweeter and midrange pairs, likely positioned to create stereo imaging and soundstage width across the front cabin area.
- Rear door panels feature the same tweeter and midrange combination found in the front doors, potentially providing rear passenger audio coverage and contributing to overall cabin sound distribution.
- The rear deck lid contains both 1-inch tweeters and 4-inch midrange speakers, which may fill the upper rear soundstage or complement the rear door components.
- An 8-inch subwoofer positioned below the seats handles low-frequency reproduction, addressing bass response without occupying trunk space in the 2014 BMW 328d.
- Replacement priorities might favor the door panel speakers first, as these typically contribute most directly to perceived sound quality during normal listening positions.
- The component speaker design with separate tweeters and midrange drivers could allow for individual driver upgrades, though maintaining impedance and sensitivity matching across the frequency-divided system would be relevant.
- The single DIN radio opening provides standard head unit replacement options, though integration with the factory amplifier and speaker configuration would require consideration during any audio system modifications.