BMW 740Le xDrive Speaker Size
Speaker size, type, and location chart for BMW 740Le xDrive models from 2017 to 2017 production years.
As an Amazon Associate, we may earn a commission from purchases made through links marked. Read more in our disclaimer.
Center Dash Speaker
| Years | Type | Size (inch) |
|---|---|---|
| 2017 | Tweeter | 1 |
| 2017 | Midrange | 4 |
Front Door Panel Speaker
| Years | Type | Size (inch) |
|---|---|---|
| 2017 | Tweeter | 1 |
| 2017 | Midrange | 4 |
Rear Door Panel Speaker
| Years | Type | Size (inch) |
|---|---|---|
| 2017 | Tweeter | 1 |
| 2017 | Midrange | 4 |
Rear Deck Lid Speaker
| Years | Type | Size (inch) |
|---|---|---|
| 2017 | Tweeter | 1 |
| 2017 | Midrange | 4 |
Below Seats Speaker
| Years | Type | Size (inch) |
|---|---|---|
| 2017 | Subwoofer | 8 |
BMW 740Le xDrive Speaker FAQ
Which speakers should I replace first in my BMW 740Le xDrive for the biggest sound improvement?
Start with the front door panel 4-inch component speakers. These handle most of your music's midrange frequencies - vocals, guitars, keyboards. The BMW 740Le xDrive uses component speakers here, meaning separate woofers and tweeters for better sound separation. Look for speakers rated around 50-75 watts RMS with 4-ohm impedance. The front tweeters work with these, so you might want to upgrade both together. Skip the rear speakers initially unless you frequently have passengers back there.
What's the difference between the coaxial speakers in different locations of my BMW 740Le xDrive?
Your BMW 740Le xDrive has full-range coaxials in rear doors, center dash, and rear deck - these combine woofer and tweeter in one unit. But the front doors use component coaxials, which is... well, it's basically components mounted together but still separate elements. The 4-inch size limits bass response regardless of type. Center dash speakers might be tricky to access. Rear deck speakers often get muffled by seat backs. All should handle similar power levels, probably 25-40 watts RMS each, but check your factory amp specs first.
Can I upgrade the 8-inch subwoofer under the seats in my BMW 740Le xDrive?
Yes, but it's complicated. The under-seat 8-inch woofer handles bass frequencies below 80-120 Hz typically. BMW 740Le xDrive probably has this integrated with the factory amplifier system. You'd need to verify the impedance - likely 4 or 8 ohms - and power handling, maybe 100-150 watts RMS. Accessing it requires removing seats usually. Consider if you really need more bass first. Sometimes upgrading door speakers reduces the load on this woofer and improves overall sound balance without touching the sub.
Why does my BMW 740Le xDrive have so many 1-inch tweeters throughout the cabin?
The multiple 1-inch tweeters create a surround sound environment. Front door, rear door, center dash, and rear deck tweeters each handle frequencies above 3-5 kHz - cymbals, vocal sibilance, harmonic overtones. In the BMW 740Le xDrive, this spreads high-frequency content around the cabin instead of just blasting it from the front. Each tweeter probably handles 10-25 watts RMS. You could upgrade them, but... honestly, the improvement might be subtle unless the originals are blown. Focus on the main speakers first.