2006 Audi S4 Speaker Sizes
The 2006 Audi S4 speaker size chart provides factory and aftermarket audio system specifications for all speaker locations. Information includes replacement options and upgrade possibilities for front door panel, rear door panel, dashboard, center dash, rear side panel, and rear deck lid positions, enabling proper aftermarket component installation.
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| Location | Size | Type | Notes |
|---|---|---|---|
| Center Dash | 3 | Midrange |
|
| Dashboard | 3 | Full-Range |
|
| Front Door Panel | 1 | Tweeter |
|
| Front Door Panel | 6.5 | Midbass / Full-Range |
|
| Rear Deck Lid | 8 | Woofer |
|
| Rear Door Panel | 1 | Tweeter |
|
| Rear Door Panel | 6.5 | Midbass / Full-Range |
|
| Rear Side Panel | 5.25 | Midbass / Full-Range |
|
| Rear Side Panel | 8 | Woofer |
|
2006 Audi S4 Speaker Replacement Summary
9
total positions
5
easy to replace
2
high priority
0
professional only
Replacement difficulty:
Low: 5 Medium: 4 High: 0Replacement priority:
High: 2 Medium: 5 Low: 22006 Audi S4 Radio Slot Size (DIN)
| DIN Type | Size (inch) | Size (mm) | Notes |
|---|---|---|---|
| Single DIN or Double DIN | 7"×2" or 7"×4" | 180×50 or 180×100 | Vehicle supports both radio sizes |
- Always measure the slot before purchasing a new radio
- Check slot depth - it may vary
Additional Notes
- The 2006 Audi S4 contains a multi-location speaker system with sizes ranging from 1 inch tweeters to 8 inch woofers, suggesting a factory-installed component-style audio configuration that separates frequency ranges across different driver types.
- Tweeters mounted in both front and rear door panels handle high-frequency reproduction, while the dashboard and center dash positions accommodate small-format drivers for midrange frequencies in the central soundstage area.
- The 6.5 inch positions in front and rear door panels likely represent the primary midbass foundation, with these locations typically receiving priority during aftermarket upgrades due to their impact on vocal clarity and overall tonal balance.
- Dual 8 inch woofer locations in the rear deck lid and rear side panel provide low-frequency extension, though their effectiveness may vary based on trunk coupling and enclosure characteristics inherent to the sedan body style.
- The 5.25 inch rear side panel position offers flexibility for either midbass reinforcement or full-range operation, potentially serving as a fill speaker to maintain rear passenger coverage.
- Component speaker systems would align well with the existing tweeter locations, allowing direct replacement without additional mounting modifications to the door panel structures.
- The 3 inch dashboard and center dash positions, while smaller in size, contribute to staging and imaging by positioning sound sources closer to windshield reflection points.
- Aftermarket installations in the 2006 Audi S4 could maintain the original multi-driver philosophy or simplify to fewer locations depending on amplifier channel availability and desired system complexity.
- Both single DIN and double DIN radio compatibility provides flexibility for head unit replacement, with double DIN opening possibilities for touchscreen navigation and advanced digital signal processing interfaces.
- The combination of dedicated woofer, midbass, midrange, and tweeter positions indicates that sound quality improvements may be achieved through selective upgrades rather than complete system replacement.