2000 BMW 328i Speaker Sizes
The 2000 BMW 328i speaker size chart details factory audio system specifications for replacement or aftermarket upgrade purposes. Information covers component locations including front door panel, rear door panel, rear deck lid, and cargo area positions. Data includes speaker specifications and mounting locations to facilitate aftermarket audio system installations.
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| Location | Size | Type | Notes |
|---|---|---|---|
| Cargo Area | 6x9 | Full-Range |
|
| Front Door Panel | 2.5 | Midrange |
|
| Front Door Panel | 1.5 | Tweeter |
|
| Front Door Panel | 5.25 | Midbass / Full-Range |
|
| Rear Deck Lid | 6.75 | Midbass / Full-Range |
|
| Rear Door Panel | 2.5 | Midrange |
|
2000 BMW 328i Speaker Replacement Summary
6
total positions
6
easy to replace
4
high priority
0
professional only
Replacement difficulty:
Low: 6 Medium: 0 High: 0Replacement priority:
High: 4 Medium: 2 Low: 02000 BMW 328i Radio Slot Size (DIN)
| DIN Type | Size (inch) | Size (mm) | Notes |
|---|---|---|---|
| Single DIN or Double DIN | 7"×2" or 7"×4" | 180×50 or 180×100 | Vehicle supports both radio sizes |
- Always measure the slot before purchasing a new radio
- Check slot depth - it may vary
Additional Notes
- The factory audio setup in the 2000 BMW 328i includes multiple speaker locations with varying sizes, suggesting a component-based approach to sound reproduction rather than relying solely on full-range drivers in every position.
- Front door panels contain three separate speaker positions at 1.5 inch, 2.5 inch, and 5.25 inch, which indicates a three-way component configuration where each driver handles a specific frequency range.
- Dedicated tweeter locations at 1.5 inch in the front doors provide positioning for high-frequency reproduction, while the 2.5 inch midrange positions handle vocal and instrumental ranges.
- The 5.25 inch positions in the front doors accommodate either midbass drivers for lower frequency support in component systems or full-range speakers for simpler replacement approaches.
- Rear door panels feature 2.5 inch midrange positions, which may contribute to rear fill in the soundstage or serve as part of the overall frequency distribution throughout the cabin.
- The rear deck lid includes 6.75 inch positions compatible with midbass or full-range speakers, offering options for enhancing lower frequencies or providing rear audio coverage in the 2000 BMW 328i.
- Cargo area positions accept 6x9 inch full-range speakers, a format that typically balances output capability with installation flexibility in available space.
- Replacing the front door components would likely yield the most noticeable improvement in sound quality, given the presence of dedicated tweeter, midrange, and midbass positions that directly serve front passengers.
- Component speaker systems designed for three-way configurations could utilize the existing front door architecture without requiring modification to mounting locations.
- The radio installation space supports both single DIN and double DIN head units, allowing for aftermarket receiver upgrades with varying feature sets and form factors.