Ram ProMaster A-Pillar Speaker Size
The Ram ProMaster A-Pillar accommodates a 1.5 inch speaker size across all listed model years. The compatible type for the location is a tweeter. These specifications cover the range of 2014 to 2024.
| Year | Type | Size (inch) |
|---|---|---|
| 2024 | Tweeter | 1.5 |
| 2023 | Tweeter | 1.5 |
| 2022 | Tweeter | 1.5 |
| 2021 | Tweeter | 1.5 |
| 2020 | Tweeter | 1.5 |
| 2019 | Tweeter | 1.5 |
| 2018 | Tweeter | 1.5 |
| 2017 | Tweeter | 1.5 |
| 2016 | Tweeter | 1.5 |
| 2015 | Tweeter | 1.5 |
| 2014 | Tweeter | 1.5 |
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. |
Additional Notes
- The A-pillar location in the Ram ProMaster positions speakers at the forward corners of the cabin, at the junction between the windshield and the front doors, placing audio sources near ear level for front occupants.
- A-pillar mounting places speakers at a relatively steep angle toward the listening position, which supports high-frequency directional projection toward the front seating area.
- The sole speaker size present across all model years in the Ram ProMaster A-pillar is 1.5 inches, a diameter associated with compact, lightweight driver cones suited to the shallow and narrow cavities typical of A-pillar housings.
- A 1.5-inch driver has limited cone surface area, which restricts low-frequency output but allows fast, accurate transient response in the upper frequency ranges where tweeters operate.
- The only compatible speaker type listed for the Ram ProMaster A-pillar is the tweeter, a driver type dedicated to reproducing high frequencies, generally defined as the range above approximately 2,000 Hz.
- Tweeters rely on small, light diaphragms to move rapidly at high frequencies, and a 1.5-inch diameter is consistent with the physical requirements of dome or cone tweeter designs in this class.
- High frequencies are highly directional, meaning a tweeter mounted at the A-pillar projects a relatively focused sound field toward the seating area directly in line with the driver.
- The A-pillar position, being forward and elevated relative to most other cabin speaker locations, reduces reflected path interference for high-frequency content, which degrades more readily with reflective surface interaction than low-frequency content.
- The Ram ProMaster A-pillar's 1.5-inch tweeter specification applies consistently across the 2014 through 2024 model range, indicating a stable housing geometry across all listed production years.