2011 Infiniti M56 Speaker Sizes
The 2011 Infiniti M56 factory audio system utilizes specific locations for acoustic components, where the center dash and rear deck lid accommodate 3 inch speakers, while the front door panel accepts a 1 inch speaker size alongside 3 inch and 6x9 inch units. Additional placements include the headrest supporting 2 inch speakers, the rear deck center accommodating 10 inch units, and the rear door panel accepting 6.5 inch speakers. Compatible replacement and upgrade speaker types consist of tweeters, subwoofers, full-range, and midrange drivers.
Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.
| Location | Size | Type | Notes |
|---|---|---|---|
| Center Dash | 3 | Midrange |
|
| Front Door Panel | 3 | Midrange |
|
| Front Door Panel | 1 | Tweeter |
|
| Front Door Panel | 6x9 | Full-Range |
|
| Headrest | 2 | Tweeter |
|
| Rear Deck Center | 10 | Subwoofer |
|
| Rear Deck Lid | 3 | Full-Range |
|
| Rear Door Panel | 6.5 | Midbass / Full-Range |
|
2011 Infiniti M56 Speaker Replacement Summary
8
total positions
5
easy to replace
3
high priority
1
professional only
Replacement difficulty:
Low: 5 Medium: 2 High: 1Replacement priority:
High: 3 Medium: 4 Low: 1Additional Notes
- The 2011 Infiniti M56 features a multi-component speaker arrangement with dedicated tweeters, midrange drivers, and bass-focused speakers distributed across different locations throughout the cabin.
- The front door panels incorporate a three-way speaker configuration consisting of a 1-inch tweeter, 3-inch midrange, and 6x9 inch full-range driver, suggesting a factory system designed for broad frequency coverage.
- Headrest-mounted 2-inch tweeters indicate an available surround sound or premium audio package that positions high-frequency drivers closer to occupant ear level for enhanced spatial imaging.
- The rear deck center houses a 10-inch subwoofer, which likely handles low-frequency reproduction and may be the primary candidate for aftermarket upgrades when seeking enhanced bass response.
- Rear door panels contain 6.5-inch speakers compatible with both midbass and full-range drivers, offering flexibility in replacement component selection depending on whether the factory system uses passive crossovers or relies on the head unit for signal filtering.
- A 3-inch midrange speaker in the center dash position suggests the 2011 Infiniti M56 may include a center channel configuration, which would indicate a multi-channel amplified system rather than a basic stereo setup.
- The rear deck lid incorporates 3-inch full-range speakers that likely provide fill audio for rear passengers, though these smaller drivers typically contribute less to overall sound quality compared to larger door-mounted components.
- When considering speaker replacement, the 6x9 inch front door speakers and 10-inch rear deck subwoofer would generally provide the most noticeable sound improvement due to their size and frequency range responsibilities.
- The tweeter locations in both the front doors and headrests indicate that replacement efforts should account for potential duplicate high-frequency coverage, which may require consideration of impedance matching and power handling to avoid overwhelming the treble response.