2018 Audi S3 Speaker Sizes

The 2018 Audi S3 factory audio system contains specific locations that accept distinct audio components, where the a-pillar and rear door panel accommodate 1 inch units. Additionally, the center dash and rear deck lid accept 3.5 inch speakers, the front door panel accommodates a 3.5 inch speaker size, while the front door panel and rear door panel support 6.5 inch speakers, and the rear deck lid accepts an 8 inch unit. Compatible speaker types for a replacement upgrade consist of tweeters, full-range units, midrange units, midbass drivers, and woofers.

Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.

Speaker Details by Location
Location Size Type Notes
A-Pillar 1 Tweeter
  • Requires panel disassembly
  • Professional installation recommended
  • Low replacement priority
  • Replacement difficulty: high
Center Dash 3.5 Full-Range
  • Requires dashboard disassembly
  • Medium replacement priority
  • Replacement difficulty: medium
Front Door Panel 3.5 Midrange
  • Standard installation
  • High replacement priority
  • Replacement difficulty: low
Front Door Panel 6.5 Midbass / Full-Range
  • Standard installation
  • High replacement priority
  • Replacement difficulty: low
Rear Deck Lid 3.5 Full-Range
  • Access through trunk
  • Medium replacement priority
  • Replacement difficulty: low
Rear Deck Lid 8 Woofer
  • Access through trunk
  • Medium replacement priority
  • Replacement difficulty: low
Rear Door Panel 1 Tweeter
  • Standard installation
  • Medium replacement priority
  • Replacement difficulty: low
Rear Door Panel 6.5 Midbass / Full-Range
  • Standard installation
  • Medium replacement priority
  • Replacement difficulty: low

2018 Audi S3 Speaker Replacement Summary

8 total positions
6 easy to replace
2 high priority
1 professional only

Replacement difficulty:

Low: 6 Medium: 1 High: 1

Replacement priority:

High: 2 Medium: 5 Low: 1

Additional Notes

  • The 2018 Audi S3 features a multi-location speaker system with varying sizes, suggesting that priority replacements may focus on the larger 6.5 inch front and rear door panel speakers which handle midbass and full-range frequencies.
  • The presence of dedicated 1 inch tweeters in both A-pillar and rear door panel locations indicates a component-style audio architecture rather than a simple coaxial setup.
  • Front door panels contain dual speaker configurations with both 3.5 inch midrange and 6.5 inch midbass/full-range units, which suggests a three-way component system design in the front soundstage.
  • The 8 inch woofer in the rear deck lid likely provides extended low-frequency response, while the accompanying 3.5 inch full-range speaker may handle upper bass and midrange frequencies in that location.
  • Replacing the 6.5 inch door speakers with higher-quality aftermarket units could potentially improve overall sound clarity and bass response, as these handle the majority of the frequency spectrum.
  • The 3.5 inch center dash full-range speaker may contribute to vocal clarity and center imaging, though its small size limits low-frequency output.
  • Upgrading the 1 inch tweeters could enhance high-frequency detail and soundstage width, particularly if the factory units exhibit limited extension or harshness.
  • The rear deck configuration with both 3.5 inch and 8 inch speakers suggests a two-way setup that balances midbass reinforcement with low-end extension.