Audi TT Rear Side Panel Speaker Size
The Audi TT rear side panel accommodates a 1 inch speaker size, and 3.5, 5.25, and 6.5 inch speakers across the model range. Compatible audio types include tweeter, midrange, midbass, and full-range units. These specifications cover the 2000 to 2009 model years.
| Year | Type | Size (inch) |
|---|---|---|
| 2009 | Midbass / Full-Range | 5.25 |
| 2009 | Tweeter | 1 |
| 2009 | Midbass / Full-Range | 6.5 |
| 2008 | Midbass / Full-Range | 5.25 |
| 2008 | Tweeter | 1 |
| 2008 | Midbass / Full-Range | 6.5 |
| 2006 | Midbass / Full-Range | 6.5 |
| 2006 | Midrange | 3.5 |
| 2005 | Midbass / Full-Range | 6.5 |
| 2005 | Midrange | 3.5 |
| 2004 | Midbass / Full-Range | 6.5 |
| 2004 | Midrange | 3.5 |
| 2003 | Midbass / Full-Range | 6.5 |
| 2003 | Midrange | 3.5 |
| 2002 | Midbass / Full-Range | 6.5 |
| 2002 | Midrange | 3.5 |
| 2001 | Midbass / Full-Range | 6.5 |
| 2001 | Midrange | 3.5 |
| 2000 | 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 Audi TT rear side panel is a structural cavity location, meaning speaker mounting depth and baffle dimensions are constrained by the panel's internal geometry rather than an open door cavity.
- Side panel locations typically place speakers at or near seat level, which affects the directional angle of sound dispersion toward occupants and influences how high-frequency content from tweeters reaches the listening position.
- The 6.5 inch size appears across the widest range of model years in the specifications and, at that diameter, is capable of moving sufficient air to reproduce lower midrange and upper bass frequencies effectively within an enclosed panel cavity.
- A 6.5 inch driver in a rear side panel contributes to the lower portion of the audible spectrum from approximately 80 Hz to 500 Hz when used as a midbass unit, reinforcing the low-frequency foundation of the rear soundstage.
- When a 6.5 inch driver operates as a full-range unit, the same cone must cover frequencies from the bass region up through the upper midrange, which places greater demands on the driver's linear excursion and cone material properties.
- The 5.25 inch size listed for 2008 and 2009 is physically smaller than the 6.5 inch, which reduces low-frequency extension but can improve directional control in the upper midrange frequencies within the same side panel mounting location.
- The 1 inch tweeter entries for 2008 and 2009 indicate a separate high-frequency driver is mounted in the rear side panel alongside the larger driver, covering frequencies typically above 2,000 Hz to 3,000 Hz where directional dispersion becomes increasingly narrow.
- A 1 inch dome tweeter in the Audi TT rear side panel location projects high-frequency content in a relatively focused pattern, and the mounting angle of the panel surface determines how that dispersion aligns with the rear seating area.
- The 3.5 inch midrange size listed for model years 2000 through 2006 handles the vocal and presence frequency band, roughly 300 Hz to 5,000 Hz, which occupies the most sensitive range of human hearing.
- In the rear side panel context, a 3.5 inch midrange driver supplements the 6.5 inch driver by covering the upper portion of the frequency range where the larger driver's off-axis response and cone breakup begin to limit performance.
- The pairing of a 6.5 inch midbass or full-range driver with a 3.5 inch midrange in the same rear side panel location, as seen in the 2001 through 2006 entries, represents a multi-driver configuration within a single mounting zone.
- The shift from a 6.5 inch plus 3.5 inch midrange configuration to a 6.5 inch or 5.25 inch plus 1 inch tweeter configuration between the earlier and 2008-2009 model years reflects a change in how the rear side panel location of the Audi TT accommodates speaker components.