2018 Audi S3 Speaker Sizes

The speaker size chart for the 2018 Audi S3 provides factory specifications for all audio system locations. Information covers replacement speakers in the front door panel, rear door panel, center dash, a-pillar, and rear deck lid positions. Details assist with aftermarket speaker upgrades by listing original equipment sizes and mounting configurations.

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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.