2018 Nissan Maxima Speaker Sizes
The 2018 Nissan Maxima factory audio system includes specific mounting locations designed for aftermarket hardware. Dashboard and front door panels accept 1 inch units. Dashboard and rear door panels accommodate 3.5 inch speakers. Front door panels and rear deck lid support 6x9 inch units, while dashboard locations also accept a 2 inch speaker size. Available replacement and upgrade options include tweeter, full-range, and midrange configurations.
Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.
| Location | Size | Type | Notes |
|---|---|---|---|
| Dashboard | 2 | Tweeter |
|
| Dashboard | 3.5 | Full-Range |
|
| Front Door Panel | 6x9 | Full-Range |
|
| Front Door Panel | 1 | Tweeter |
|
| Rear Deck Lid | 6x9 | Full-Range |
|
| Rear Door Panel | 3.5 | Midrange |
|
2018 Nissan Maxima Speaker Replacement Summary
6
total positions
4
easy to replace
2
high priority
0
professional only
Replacement difficulty:
Low: 4 Medium: 2 High: 0Replacement priority:
High: 2 Medium: 4 Low: 0Additional Notes
- The 2018 Nissan Maxima factory audio system distributes six speaker locations across the cabin, with tweeters positioned in both the front door panels and dashboard areas for high-frequency reproduction.
- Front door panels house a combination of 1-inch tweeters and 6x9-inch full-range speakers, suggesting a component-style arrangement where dedicated tweeters handle upper frequencies while larger oval speakers manage broader frequency ranges.
- Rear audio coverage relies on 3.5-inch midrange speakers in the door panels and 6x9-inch full-range speakers in the deck lid, creating a four-speaker rear configuration that balances vocal clarity with overall sound projection.
- The dashboard contains both 2-inch tweeters and 3.5-inch full-range speakers, which may work together to reinforce mid-to-high frequencies in the front soundstage or serve different audio zones depending on the factory system design.
- Replacing the 6x9-inch speakers in the front doors and rear deck lid could provide the most noticeable sound quality improvement, as these larger full-range units handle the majority of the frequency spectrum and typically benefit most from aftermarket upgrades.
- The inclusion of multiple tweeter sizes (1-inch and 2-inch) indicates the factory system likely prioritizes detailed high-frequency response, which aftermarket component speakers with higher-quality dome tweeters could potentially enhance.
- Upgrading the 3.5-inch speakers in both dashboard and rear door locations presents an opportunity to improve midrange clarity, though their smaller size limits low-frequency output compared to the 6x9-inch locations.
- The oval 6x9-inch format in both front and rear positions provides greater cone area than round speakers of similar widths, which typically translates to improved bass response and overall output capability when quality replacements are installed.