BMW i8 Center Dash Speaker Size
The BMW i8 center dash accommodates a 1 inch speaker size and 4 inch speakers. Compatible types for the location include tweeter and midrange units. These specifications cover the 2014 to 2017 model years.
| Year | Type | Size (inch) |
|---|---|---|
| 2017 | Tweeter | 1 |
| 2017 | Midrange | 4 |
| 2016 | Tweeter | 1 |
| 2016 | Midrange | 4 |
| 2015 | Tweeter | 1 |
| 2015 | Midrange | 4 |
| 2014 | Tweeter | 1 |
| 2014 | Midrange | 4 |
Speaker Types
| Type | Description |
|---|---|
| Tweeter | A small driver built for high frequencies, typically from about 2,000 Hz to 20,000 Hz. It adds treble detail and clarity and is usually mounted near ear level or aimed at the listener. |
| Midrange | A driver for the middle of the audible range, typically from about 300 Hz to 5,000 Hz, where vocals and most instruments sit. It is often paired with a tweeter and a woofer. |
Additional Notes
- The center dash location in the BMW i8 accommodates 2 distinct speaker sizes: 1 inch and 4 inch.
- A 1-inch tweeter mounted at the center dash occupies a compact footprint, consistent with the minimal cavity space typically available within a dashboard's central fascia.
- Tweeters reproduce high-frequency audio content, generally from around 2,000 Hz upward, and their placement at the center dash positions high-frequency output along the horizontal axis between driver and passenger.
- The 1-inch diameter of the tweeter in the BMW i8 center dash reflects the spatial constraints of a center dash cavity, where larger drivers would be difficult to accommodate without structural modification.
- A 4-inch midrange driver at the center dash handles the mid-frequency band, broadly spanning approximately 300 Hz to 5,000 Hz, covering vocals, instruments, and upper bass detail.
- The 4-inch midrange size occupies a moderate mounting area within the center dash, requiring a larger cutout and mounting depth than the 1-inch tweeter position at the same location.
- Midrange drivers at a center dash position radiate sound toward both the driver and front passenger from a central axis, contributing to a shared stereo image rather than a channel-specific one.
- The coexistence of a 1-inch tweeter and a 4-inch midrange at the center dash indicates the location supports a 2-way speaker arrangement, with each driver covering a separate portion of the audible frequency spectrum.
- The center dash mounting surface in the BMW i8 is angled toward the cabin occupants, which affects the dispersion angle of both the tweeter and midrange relative to seated ear level.
- A 4-inch midrange driver requires sufficient rear mounting depth within the dashboard structure to allow cone excursion without obstruction, a mechanical constraint specific to the center dash enclosure space of the BMW i8.