2018 Audi A3 Sportback e-tron Speaker Sizes
The 2018 Audi A3 Sportback e-tron factory audio system includes an a-pillar and rear door panel accepting 1 inch units. Center dash, d-pillar, and front door panel locations accommodate a 3.5 inch speaker size, while front door panel and rear door panel locations accept 6.5 inch speakers. The cargo area supports an 8 inch unit. Compatible speaker types for replacement and upgrade include tweeter, full-range, midrange, midbass, and subwoofer.
Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.
| Location | Size | Type | Notes |
|---|---|---|---|
| A-Pillar | 1 | Tweeter |
|
| Cargo Area | 8 | Subwoofer |
|
| Center Dash | 3.5 | Full-Range |
|
| D-Pillar | 3.5 | Midrange |
|
| Front Door Panel | 3.5 | Midrange |
|
| Front Door Panel | 6.5 | Midbass / Full-Range |
|
| Rear Door Panel | 1 | Tweeter |
|
| Rear Door Panel | 6.5 | Midbass / Full-Range |
|
2018 Audi A3 Sportback e-tron Speaker Replacement Summary
8
total positions
5
easy to replace
3
high priority
2
professional only
Replacement difficulty:
Low: 5 Medium: 1 High: 2Replacement priority:
High: 3 Medium: 3 Low: 2Additional Notes
- The 2018 Audi A3 Sportback e-tron incorporates multiple speaker locations throughout the cabin, suggesting a multi-component audio architecture with dedicated drivers for different frequency ranges rather than relying solely on coaxial speakers.
- The A-pillar and rear door panel positions both accommodate 1-inch tweeters, which typically handle high-frequency reproduction above 3-4 kHz and contribute to soundstage width and imaging clarity.
- Three separate 3.5-inch locations serve distinct purposes: the center dash uses a full-range driver for central vocal anchoring, while the D-pillar and front door panels employ midrange drivers that likely reproduce frequencies in the 300 Hz to 5 kHz range.
- Both front and rear door panels feature 6.5-inch positions compatible with either midbass or full-range drivers, offering flexibility depending on whether the system uses component separation or simpler full-range configurations.
- The cargo area houses an 8-inch subwoofer location, which would typically reproduce low frequencies below 80-100 Hz and provide bass extension that smaller door-mounted drivers cannot achieve.
- Replacing factory speakers in a component system like this generally prioritizes the front door 6.5-inch positions first, as these contribute most significantly to midrange clarity and midbass impact in the primary listening area.
- The presence of dedicated tweeter locations in the A-pillars and rear doors indicates that these positions require separate high-frequency drivers when upgrading to aftermarket component speaker sets rather than coaxial designs.
- The 3.5-inch midrange drivers in the front doors and D-pillars fill the frequency gap between the 1-inch tweeters and 6.5-inch midbass drivers, creating a three-way component configuration in the front stage.
- Sound improvement from speaker replacement would likely be most noticeable when addressing the 6.5-inch front door positions, as these handle the critical midrange and upper bass frequencies where musical detail and vocal reproduction reside.