Scion iM Front Door Panel Speaker Size
The Scion iM front door panel accommodates a 6.5 inch speaker size and 1 inch speakers. Compatible types for the front door panel include midbass, full-range, and tweeter audio system units. These specifications cover the 2016 model year.
| Year | Type | Size (inch) |
|---|---|---|
| 2016 | Midbass / Full-Range | 6.5 |
| 2016 | Tweeter | 1 |
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. |
| 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 front door panel location in the 2016 Scion iM accommodates 2 distinct speaker sizes, with each occupying a separate mounting position within the door structure.
- A 6.5 inch speaker mounted in a front door panel sits within the lower or mid-section of the door cavity, where the enclosure formed by the door shell and inner panel acts as a partial acoustic baffle.
- The 6.5 inch diameter corresponds to a cone surface area suited to reproducing frequencies in the lower-to-mid range, typically spanning from around 60 Hz up through several kilohertz, depending on driver design.
- In a front door panel position, a 6.5 inch driver is oriented to project sound across the cabin floor plane, which affects the directional character of the reproduced frequencies reaching the listening position.
- Midbass drivers in the 6.5 inch front door panel position are designed to prioritize the lower portion of the midrange and upper bass frequencies, functioning best when crossed over to a separate high-frequency driver above roughly 2 to 3 kHz.
- Full-range drivers in the 6.5 inch front door panel position are built to reproduce a wider frequency span without requiring a crossover network, covering bass through treble from a single cone.
- The 1 inch tweeter size listed for the 2016 Scion iM front door panel indicates a dedicated high-frequency mounting point separate from the woofer location, typically positioned higher in the door or at the mirror sail panel area to improve treble dispersion toward the listener's ear level.
- A 1 inch tweeter dome operates efficiently at high frequencies, generally from around 2 kHz upward, where small cone excursion is sufficient to produce short-wavelength sound waves.
- The presence of both a 6.5 inch position and a 1 inch tweeter position in the front door panel indicates a 2-way speaker arrangement within the door, where each driver handles a distinct portion of the audible frequency spectrum.
- Tweeters rely on the dome or cone diaphragm's small diameter to maintain wide horizontal dispersion at high frequencies, which is acoustically significant in a door-mounted location where the driver's angle relative to the occupant varies with seating position.