Audi A3 Rear Door Panel Speaker Size
The Audi A3 rear door panel accommodates a 1 inch speaker size and 6.5 inch speakers. Compatible types for the location include tweeters and midbass / full-range units. The specifications cover the 2006 to 2018 model range.
| Year | Type | Size (inch) |
|---|---|---|
| 2018 | Tweeter | 1 |
| 2018 | Midbass / Full-Range | 6.5 |
| 2017 | Tweeter | 1 |
| 2017 | Midbass / Full-Range | 6.5 |
| 2016 | Tweeter | 1 |
| 2016 | Midbass / Full-Range | 6.5 |
| 2013 | Tweeter | 1 |
| 2013 | Midbass / Full-Range | 6.5 |
| 2012 | Tweeter | 1 |
| 2012 | Midbass / Full-Range | 6.5 |
| 2011 | Tweeter | 1 |
| 2011 | Midbass / Full-Range | 6.5 |
| 2010 | Tweeter | 1 |
| 2010 | Midbass / Full-Range | 6.5 |
| 2009 | Tweeter | 1 |
| 2009 | Midbass / Full-Range | 6.5 |
| 2008 | Tweeter | 1 |
| 2008 | Midbass / Full-Range | 6.5 |
| 2007 | Tweeter | 1 |
| 2007 | Midbass / Full-Range | 6.5 |
| 2006 | Tweeter | 1 |
| 2006 | Midbass / Full-Range | 6.5 |
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. |
| 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 Audi A3 rear door panel location accommodates 2 distinct speaker sizes simultaneously: a 1 inch unit and a 6.5 inch unit.
- Rear door panels mount speakers within a confined cavity formed by the door's inner structure, which affects the available depth and baffle surface area for each driver.
- The 6.5 inch diameter of the midbass or full-range driver in the Audi A3 rear door panel corresponds to a cone surface area sufficient to move the air volume needed to reproduce lower midrange and upper bass frequencies, roughly from around 60 Hz to 5 kHz depending on crossover configuration.
- A 6.5 inch driver operating in a rear door cavity benefits from the door's internal air volume, which can act as an enclosure and influence the low-frequency extension and resonance behavior of the driver.
- In a midbass configuration, the 6.5 inch driver handles primarily the bass and lower midrange band, relying on a crossover to pass upper frequencies to a separate tweeter mounted in the same location.
- In a full-range configuration, the 6.5 inch driver reproduces a wider frequency span without crossover division, covering bass through treble within the limits of the cone's physical excursion and material properties.
- The 1 inch tweeter designation refers to the diameter of the driver's dome or diaphragm, a small surface area that allows rapid pistonic movement suited to reproducing high frequencies, typically from around 2 kHz to 20 kHz.
- Placement of a 1 inch tweeter in the Audi A3 rear door panel positions high-frequency dispersion at a relatively low height near the listening plane, which influences the directional character of treble energy reaching rear seat occupants.
- Tweeters exhibit a narrow dispersion pattern at higher frequencies, meaning the angle between the 1 inch driver's axis and the listener's ear affects the perceived treble presence and air in the rear cabin.
- The coexistence of a 1 inch tweeter and a 6.5 inch midbass or full-range driver within the same rear door panel indicates the location contains separate mounting provisions for each driver size.
- Door panel speaker locations are subject to low-frequency reinforcement from road and wind noise at highway speeds, which is relevant to the operational environment of the 6.5 inch driver's bass output in the Audi A3 rear door.
- The rear door panel position places both drivers farther from the front listening position than front door or dashboard locations, a spatial characteristic that affects time alignment and stereo imaging for front seat occupants.