Buick LaCrosse Rear Door Panel Speaker Size
The Buick LaCrosse rear door panel accommodates a 6.75 inch speaker size across all listed model years. Compatible audio types for the location include midbass and full-range units. The specifications cover a range of years from 2010 to 2019.
| Year | Type | Size (inch) |
|---|---|---|
| 2019 | Midbass / Full-Range | 6.75 |
| 2018 | Midbass / Full-Range | 6.75 |
| 2017 | Midbass / Full-Range | 6.75 |
| 2016 | Midbass / Full-Range | 6.75 |
| 2015 | Midbass / Full-Range | 6.75 |
| 2014 | Midbass / Full-Range | 6.75 |
| 2013 | Midbass / Full-Range | 6.75 |
| 2012 | Midbass / Full-Range | 6.75 |
| 2011 | Midbass / Full-Range | 6.75 |
| 2010 | Midbass / Full-Range | 6.75 |
Speaker Types
| Type | Description |
|---|---|
| Midbass | A driver tuned for upper bass and lower midrange, roughly from 80 Hz to 500 Hz. It has longer cone travel than a full-range unit, which supports stronger bass in doors and panels. |
| Full-Range | A single driver that reproduces bass through treble without a separate crossover network. It is the simplest replacement option and is common in factory audio systems. |
Additional Notes
- The rear door panel is a flush-mounted location integrated into the interior trim of the door, positioning speakers at a low-to-mid height along the vehicle's side walls and directing audio output laterally across the cabin.
- Door panel installations place speakers within an enclosure formed by the door's inner cavity, which acts as a partial acoustic chamber and influences low-frequency resonance and overall speaker behavior.
- The 6.75-inch diameter falls within the mid-woofer range, a size capable of reproducing frequencies from the upper bass region through the lower midrange, roughly 60 Hz to 5 kHz depending on driver construction.
- At 6.75 inches, the cone surface area is large enough to move sufficient air for meaningful bass output in the rear door cavity without requiring a dedicated subwoofer at that location.
- The Buick LaCrosse rear door panel accommodates a 6.75-inch driver across all listed model years, a diameter that is not a universal standard and requires precise fitment verification against the mounting ring dimensions of the door panel cutout.
- Midbass speakers are designed to handle the lower-midrange and upper-bass frequencies, typically operating between approximately 80 Hz and 500 Hz, and are often used as part of a multi-component audio system where a separate tweeter handles high frequencies.
- Full-range speakers are designed to reproduce a broad portion of the audible spectrum from a single driver, covering bass, midrange, and a portion of the high frequencies, making them a functional standalone solution in a door panel location.
- In a rear door panel position, a midbass driver reinforces the low-frequency foundation of the soundstage, supporting the front speakers and contributing to perceived warmth and body in the overall cabin audio.
- A full-range driver installed in the rear door panel location handles the entire reproduced spectrum at that position, which is acoustically significant given the lateral and rearward orientation relative to front-seat listeners.
- The lateral placement of rear door speakers means audio arrives at front-seat passengers from an angle rather than directly ahead, a characteristic that affects the perceived stereo image and spatial width of the sound field within the cabin.