2008 Chevrolet HHR Speaker Sizes
The 2008 Chevrolet HHR factory audio system places 1.5 inch speakers in the front door panel. Front door panel and rear door panel locations accept 6.5 inch speakers. Front door panel locations also accommodate 6.75 inch units, while rear side panel locations support an 8 inch speaker size. Compatible speaker types for replacement and upgrade include tweeter, midbass, full-range, and woofer.
Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.
| Location | Size | Type | Notes |
|---|---|---|---|
| Front Door Panel | 6.75 | Midbass / Full-Range |
|
| Front Door Panel | 1.5 | Tweeter |
|
| Front Door Panel | 6.5 | Midbass / Full-Range |
|
| Rear Door Panel | 6.5 | Midbass / Full-Range |
|
| Rear Side Panel | 8 | Woofer |
|
2008 Chevrolet HHR Speaker Replacement Summary
5
total positions
4
easy to replace
3
high priority
0
professional only
Replacement difficulty:
Low: 4 Medium: 1 High: 0Replacement priority:
High: 3 Medium: 1 Low: 12008 Chevrolet HHR 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 2008 Chevrolet HHR factory audio configuration includes both dedicated tweeter positions and larger driver locations, which may allow for component speaker installations that separate high-frequency and mid-range reproduction across the front soundstage.
- Front door panels offer multiple size options at 6.5 inches and 6.75 inches for midbass or full-range drivers, suggesting some variation in mounting depth or adapter compatibility that could influence speaker selection based on available clearance.
- The 1.5-inch tweeter location in the front door panels typically handles frequencies above approximately 3-4 kHz, which could contribute to improved imaging and detail retrieval when paired with appropriately crossed-over midbass drivers.
- Rear door panel positions accommodate 6.5-inch speakers, while rear side panels feature 8-inch woofer locations that may provide enhanced low-frequency output compared to the smaller rear door positions.
- The 8-inch woofer specification in the rear side panel indicates a focus on extended bass response, though proper enclosure volume and damping characteristics would influence actual low-frequency performance.
- Component speaker systems with separate tweeters and midbass drivers could utilize the existing tweeter locations rather than coaxial designs, potentially offering improved off-axis response and staging characteristics.
- The radio accepts both single DIN and double DIN head units, which may provide flexibility for upgrading source components with enhanced digital signal processing or amplifier output capabilities.
- Prioritizing front speaker replacement over rear positions would likely yield more noticeable improvements in sound quality, as front speakers contribute more significantly to stereo imaging and tonal accuracy in typical listening positions.
- The combination of 6.5-inch or 6.75-inch front speakers with 8-inch rear woofers suggests a factory configuration that may have attempted to balance midrange clarity with low-frequency extension across the cabin.
- Full-range speakers in the 6.5-inch or 6.75-inch positions would need to reproduce frequencies from approximately 80 Hz to 20 kHz, whereas dedicated midbass drivers could focus on the 80 Hz to 3-4 kHz range when paired with separate tweeters.