Audi A3 Quattro Rear Side Panel Speaker Size
The Audi A3 Quattro rear side panel accommodates a 1 inch speaker size, 3.5 inch speakers, and 6.5 inch units across all listed configurations. Compatible speaker types for these locations include tweeter, midrange, and midbass / full-range units. The specifications cover a range of years from 2015 to 2018.
| Year | Type | Size (inch) |
|---|---|---|
| 2018 | Midrange | 3.5 |
| 2018 | Tweeter | 1 |
| 2018 | Midbass / Full-Range | 6.5 |
| 2017 | Midrange | 3.5 |
| 2017 | Tweeter | 1 |
| 2017 | Midbass / Full-Range | 6.5 |
| 2016 | Midrange | 3.5 |
| 2016 | Tweeter | 1 |
| 2016 | Midbass / Full-Range | 6.5 |
| 2015 | Midrange | 3.5 |
| 2015 | Tweeter | 1 |
| 2015 | 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. |
| 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. |
| 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 side panel location in the Audi A3 Quattro accommodates 3 distinct speaker sizes simultaneously, indicating a multi-driver configuration within a single installation zone.
- The rear side panel position places speakers along the interior side structure behind the rear seats, a location that generally disperses sound laterally across the cabin rather than projecting directly toward front listeners.
- The 6.5 inch diameter is the largest of the 3 sizes listed for the Audi A3 Quattro rear side panel, and at that diameter a driver moves sufficient air to reproduce low-to-mid frequencies with meaningful output in an enclosed cabin space.
- A 6.5 inch driver in the midbass role handles the lower portion of the midrange and upper bass frequencies, typically operating in a range from roughly 80 Hz to 500 Hz, reinforcing the low-end foundation of the audio stage from the rear of the vehicle.
- When a 6.5 inch driver operates in full-range mode, it covers a wider frequency span without the support of dedicated companion drivers, functioning as a standalone source across lows, mids, and limited highs.
- The 3.5 inch midrange driver occupies a size category suited to vocal and instrument frequencies, generally covering the band from approximately 500 Hz to 5,000 Hz, where human speech intelligibility and many melodic tones are concentrated.
- At 3.5 inches, the cone is small enough to reproduce mid frequencies with relatively low coloration while remaining physically compact enough to fit within the constrained panel geometry of a rear side installation.
- The 1 inch tweeter handles high-frequency reproduction, typically from around 3,500 Hz to 20,000 Hz, and at the rear side panel position, the tweeter adds upper harmonic detail and spatial airiness to the rearward sound field.
- A 1 inch tweeter dome is a standard diameter for high-frequency drivers and at the rear side panel location, off-axis dispersion characteristics of a driver this size allow high frequencies to spread broadly across the cabin rather than beaming narrowly.
- The presence of all 3 sizes across the 2015 through 2018 model years indicates that the rear side panel cavity dimensions and mounting configurations remained consistent across those years of the Audi A3 Quattro.
- The combination of a 1 inch tweeter, a 3.5 inch midrange, and a 6.5 inch midbass or full-range driver within one panel location represents a three-way driver arrangement, where each driver is responsible for a distinct frequency band within the total acoustic output of the rear side location.