2013 Infiniti M37 Speaker Sizes

The 2013 Infiniti M37 factory audio system integrates multiple locations for components. The front door panel and rear door panel accommodate 6.5 inch speakers. Headrest and rear deck lid locations accept 3 inch speakers, while front door panel and center dash locations support 3 inch units. Front door panel accommodates a 1 inch speaker size and 6x9 inch speakers, and rear deck center supports a 10 inch speaker. Compatible speaker types for replacement and upgrade include tweeter, subwoofer, full-range, midrange, and midbass.

Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.

Speaker Details by Location
Location	Size	Type	Notes
Center Dash	3	Midrange	Requires dashboard disassembly Medium replacement priority Replacement difficulty: medium
Front Door Panel	3	Midrange	Standard installation High replacement priority Replacement difficulty: low
Front Door Panel	1	Tweeter	Standard installation High replacement priority Replacement difficulty: low
Front Door Panel	6x9	Full-Range	Standard installation High replacement priority Replacement difficulty: low
Headrest	2	Tweeter	Rare location Custom mounting required Low replacement priority Replacement difficulty: high
Rear Deck Center	10	Subwoofer	Requires shelf removal Medium replacement priority Replacement difficulty: medium
Rear Deck Lid	3	Full-Range	Access through trunk Medium replacement priority Replacement difficulty: low
Rear Door Panel	6.5	Midbass / Full-Range	Standard installation Medium replacement priority Replacement difficulty: low

2013 Infiniti M37 Speaker Replacement Summary

8 total positions

5 easy to replace

3 high priority

1 professional only

Replacement difficulty:

Low: 5 Medium: 2 High: 1

Replacement priority:

High: 3 Medium: 4 Low: 1

Additional Notes

The 2013 Infiniti M37 features a multi-speaker configuration with dedicated frequency-specific drivers positioned throughout the cabin, suggesting a factory audio system designed with sound staging in mind.
Front door panels contain three separate speaker sizes including 1 inch tweeters, 3 inch midrange units, and 6x9 inch full-range speakers, indicating a component-style setup rather than simpler coaxial designs.
Headrest-mounted 2 inch tweeters point toward occupant ear level, which may provide enhanced high-frequency detail and spatial imaging compared to conventional door-mounted tweeters alone.
The rear deck center houses a 10 inch subwoofer, offering factory-installed low-frequency reinforcement without requiring aftermarket subwoofer enclosures or amplification modifications.
Rear door panels incorporate 6.5 inch speakers compatible with both midbass and full-range types, providing flexibility in replacement speaker selection based on desired tonal characteristics.
A 3 inch midrange speaker in the center dash position could contribute to center-channel imaging and dialogue clarity, particularly for front-seat occupants in the 2013 Infiniti M37.
Rear deck lid 3 inch full-range speakers supplement the overall soundstage, though their contribution may be less critical than front-stage components for typical listening positions.
Upgrading the front door panel speakers might yield the most noticeable acoustic improvements given their combined tweeter, midrange, and full-range driver arrangement.
The presence of dedicated midrange drivers separate from tweeters and larger speakers suggests a three-way component configuration in the front soundstage.
Replacement speakers should match the specified sizes and compatibility types to maintain proper fitment within existing mounting locations and grille openings.