2014 BMW 328d Speaker Sizes
The 2014 BMW 328d factory audio system locations include center dash, front door panel, rear deck lid, and rear door panel which accommodate 1 inch speakers and 4 inch units, alongside below seats locations accepting an 8 inch speaker size. Compatible speaker types for replacement and upgrade 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 |
|
| 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.